The Living World Class 11 Notes CBSE Biology Chapter 1

Section–A (1 Mark Questions)

1. Why are biological names derived from latin or are latinized?

Ans. This is because the Latin language is dead and, therefore, it will not change in form or spelling with the passage of time.

2. Define Genus. 

Ans. Genus comprises a group of related species which has more characters in common in comparison to species of other genera. Genera are aggregates of closely related species. For example, potato and brinjal are two different species but both belong to the genus Solanum.

3. What do ICBN and ICZN stand for?

Ans. ICBN stands for International Code for Botanical Nomenclature and ICZN stands for Internationl Code of Zoological Nomenclature.

4. Amoeba multiplies by mitotic cell division. Is this phenomena growth or reproduction? Explain.

Ans. Amoeba multiplies by simple mitotic cell divisions giving rise to two daughter amoebae. Here, growth is synonymous with reproduction, i.e., increase in the number of cells.

5. Given below is the scientific name of Mango. Identify the correctly written name.

Mangifera Indica

Mangifera indica

Ans. As per the rules of binomial nomenclature, the first word denoting the genus starts with a capital letter while the specific epithet starts with a small letter. Therefore, the correct scientific name of Mango is Mangifera indica.

Section–B (2 Marks Questions)

6. A ball of snow when rolled over snow increases in mass, volume, and size. Is this comparable to growth as seen in living organisms? Why? (Exemplar)

Ans. Growth in biological terms is a characteristic feature of all living organisms. It relates to an increase in size by the accumulation of protoplasm in the cell that results in an increase in the size of the cell. Whereas an increase in the number of cells by cell division results in the increased size of an individual organism. Snow is an inanimate (non-living) object, while rolling over snow, it gathers more snow on its surface thus, it increases in size by the physical phenomenon but not by the biological phenomenon. So, this growth cannot be compared to that seen in living organisms.

7. What is the role of botanical gardens? 

Ans. Botanical gardens play an important role: 

(i) These specialized gardens have collections of living plants for reference. 

(ii) Plant species in these gardens are grown for identification purposes and each plant is labeled indicating its botanical/scientific name and its family.

8. What is the relationship between a taxon, taxonomic category, and taxonomic hierarchy?

Ans. Classification is not a single-step process but involves a hierarchy of steps in which each step represents a rank or category. Since the category is a part of the overall taxonomic arrangement, it is called the taxonomic category and all categories together constitute the taxonomic hierarchy. Each category, referred to as a unit of classification, in fact, represents a rank and is commonly termed as a taxon (pl.: taxa).

9. Define the following terms:

(i) Metabolism

(ii) Herbarium

Ans. (i) The sum total of all the chemical reactions occurring in our body is metabolism.

(ii) A herbarium is a collection of preserved plant specimens and associated data used for scientific study.

10 . “Botanical gardens are living herbaria.” Comment.

Ans. Botanical gardens are living herbaria. Herbarium is a storehouse of collected plant specimens that are dried, pressed, and preserved on sheets. As a result, the specimen is no longer alive. On the other hand, botanical gardens are specialized gardens that have collections of living plants for reference. An appropriate environment required by living herbaria is maintained.

11. “All living phenomena are due to underlying interactions.” Justify this statement.

Ans. All living phenomena are due to underlying interactions. Properties of tissues are not present in the constituent cells but arise as a result of interactions among the constituent cells. Similarly, properties of cellular organelles are not present in the molecular constituents of the organelle but arise as a result of interactions among the molecular components comprising the organelle. These interactions result in emergent properties at a higher level of organization. This phenomenon is true in the hierarchy of organizational complexity at all levels.

PDF Summary - Class 11 Biology The Living World Notes (Chapter 1)

Life is a unique process that is made from the aggregation of molecules. These molecules undergo various chemical reactions to perform their specific functions which are called metabolism. This results in the production and utilization of energy. The metabolism will result in the growth, development, reproduction, adaptations, etc of the living organisms through the production of various biomolecules. 

All the living organisms that live in various habitats are found to share a somewhat similar genetic material that may be either terrestrial, aquatic, in mountains, deserts, oceans, forests, etc. 

Living organisms contain certain important characteristics that include growth and development, body organization, homeostasis, reproduction, adaptation, and energy utilization. 

1. 1 What is Growth

To differentiate whether an organism is living or not, various characteristics need to be checked in the case of living organisms. 

Characteristics of Living Organisms:

The characteristic of living organisms is given below - 

1) Growth: All living organisms can undergo the process of growth and development that results in an increase in the mass and number of cells. Multicellular organisms grow by cell division. The growth of plants and animals takes place with the help of cell division. In the case of plants, the cell division occurs throughout their life while in the case of animals the cell division occurs up to a certain age, and then the cells lose their capability to divide. 

It results in an increase in body mass and increases in the number of cells. 

Examples: Mountains, boulders, sand mounds, etc grow by the accumulation of the materials although they are non-living. So, growth cannot be taken as the factor which categorizes the organism as living. 

2) Metabolism: As the body and organs are the constituents of different chemicals, they perform various metabolic functions that result in the conversion of chemicals into other biomolecules. All plants, animals, and microbes exhibit metabolism. It is absent in the case of non-living organisms but may be introduced through the in-vitro method. 

3) Sensitivity: The living organisms whether prokaryotes or eukaryotes respond according to their surroundings and the stimuli present around them, it may be physical, chemical, or biological. The living organisms are sensitive about their surroundings and are responsible in accordance with their stimuli. The stimuli can either be biological, physical, or chemical.

4) Reproduction: The ability to produce young ones is the process of reproduction which is observed only in the case of living organisms. In the case of fungi, reproduction occurs through asexual spores, while in the case of hydra budding occurs and in planaria regeneration occurs which are all the asexual methods of reproduction. 

Reproduction is the increase in the number of cells while in the case of mules, infertile human couples, etc reproduction is absent. So, reproduction is simply synonymous with growth which is not appropriate to distinguish the living organisms. 

5) Cellular Organization: It is the defining characteristic of living organisms since all living organisms are made up of cells that help in performing various cellular functions resulting in the growth and development, reproduction, metabolism, etc in the body. Since non-living organisms are not made up of cells so they do not have cellular organization.

6) Movement: The lining organisms show movement and locomotion and more specifically plants move according to the movement of the sun. 

Example: The flame of a candle and a crystal do not show movement while if we take mango trees then we can see they undergo movement, growth, and development along with reproduction and results in the production of more trees through their seeds. Thus mango trees are said to be alive as they show movement while candles flame and crystal are not alive. 

Also, the organisms that are aware and are conscious of their surroundings will be living organisms. 

1.2 Diversity in the Living World: 

The Earth is the main area where living organisms live. The world consists of millions of living organisms that sometimes we cannot even see with our naked eyes. These organisms are found to be living in various habitats that include forests, oceans, deserts, lakes, mountains, and even hot water springs.

There are different types of plants, animals, insects in the world. This is very important and their variability is necessary for survival. The number of species identified and studied is 1.7-1.8 million. They all together make a natural diversity of life in the world which is generally called biological diversity or biodiversity.

Taxonomy: Taxonomy is the study of the classification, characterization, nomenclature, and identification of organisms and it is a branch of science. Systematics is another branch of science that includes the study of the classification, nomenclature, identification, and evolutionary history of an organism. Thus, the taxonomic characteristics of an organism along with its evolutionary history come under systematics. In 1813, A.P de Candolle was the first to introduce the term taxonomy while systematics was introduced as the time of human civilization. 

The term Systematics is derived from the Latin word ‘systema’ which means the systematic arrangement of organisms. Linnaeus published his book Systema Naturae where the classification of plants, animals were based on taxonomy.

Neo-systematics is the branch of systematics that deals with the species to be the product of evolution. In 1940, Julia Huxley was the one who developed this concept. It involves the known characteristics of an organism and also the known evidence from different fields of biology.

Identification: It is the method of pacing the organisms in their exact place based on their classification. The identification of organisms can be done with the help of taxonomic keys.

Classification: The classification is the process of grouping various living organisms based on the common features that they share. A single group consists of those organisms that have similar common features. To make classification easier various groups are forms in which different organisms are placed depending upon their characteristics. 

Characterization: The studying and understanding of characters of organisms and categorizing them like external and internal structure (morphology and anatomy), the structure of the cell (cytology), developmental process (embryology), and ecological information (ecology) of the organism.

Nomenclature (naming): The naming of living organisms is called nomenclature. There are two types of names, one is vernacular (common names) and the other is the scientific name. Local names are used in local languages or common language and are easy for the local peoples but these names are not used by biologists because:

1. For many species a single local name is often used.

2. The local names sometimes lead to incorrect meanings about the organism.

3. In different regions of the country or world, the different local names are used for one organism. Scientific names: The names are given according to certain rules and are followed by the biologist all over the world. To make it common around the world various international codes have been established.

These codes are:

• ICBN-International Code of Botanical Nomenclature

• ICZN-International Code of Zoological Nomenclature

• ICVN-International Code of Viral Nomenclature

ICBN/ICNB-International Code for Bacteriological Nomenclature or Nomenclature of Bacteria.

Binomial Nomenclature:

Carl Linnaeus is the one credited for the introduction of the binomial nomenclature of the plants and animals with his work in the book Species Plantarum in 1753. Binomial nomenclature is the biological system of naming the organisms in which the name is composed of two terms, where, the first term indicates the genus, and the second term indicates the species of the organism. E.g., Mangifera indica Linn. Mangifera is the genus name and indica is the species name. Linn indicates that this species was first described by Linnaeus Who can give scientific names: Identification, nomenclature, and classification of organisms are all involved in this branch of biology.

Rules:

1. A scientific name generally has two components (words) in Latin or is derived from Latin irrespective of their origin.

2. The First word of the biological name denotes the genus name whereas the second one denotes species.

3. When applying the binomial nomenclature system, the name of the species is written in italics or underlined separately when handwritten.

4. The generic name must start with a capital letter while a specific name should start with a small letter. 

5. The name of the author is printed in Roman or an abbreviated form at the end after the species name.

6. Only one correct name must be assigned to each taxonomic group.

7. The scientific name selected should be such that it would be easy to pronounce, and short. 

Eg: Mangifera indica- Mangifera is the genus name and indica is the species name.

1.3 Taxonomic Categories:

In 1956 the term Taxon was introduced and in 1964, Mayr defined taxon to be the various categories based on different characters of the organisms that consist of a taxonomic group of any rank.

Taxonomic Hierarchy:

Various organisms in different categories depending upon their common characters to make classification easier. These groups together are called taxonomic hierarchies. The taxonomic hierarchy includes. Kingdom, division of the kingdom, phylum, class, order, family, genus, and species. Species are the lowest while the kingdom is the highest rank within the hierarchy. It is also called the Linnaean hierarchy as it was first proposed by Carolus Linnaeus, the Father of Systematic Botany. The hierarchy includes seven obligate categories.

They are as follows-

Kingdom - Animalia

↑

Phylum - Chordata

(Division in case of plants)

↑

Class - Mammalia

↑

Order - Primata

↑

Family - Hominidae

↑

Genus - Homo

↑

Species – sapiens

• Species: It is the lowest category of the taxonomic hierarchy. There are around 8.7 million species observed on earth till now while their rest are left undiscovered. It refers to a group of organisms that are similar in shape, form, generative options. Species may be more divided into subspecies. It was first defined by Ernst Mayr in 1964 that the species are the interbreeding populations that are reproductively isolated from other such groups. The term species was first introduced by the biologist John Ray.

            E.g.: sapiens.

• Genus: A category that is placed above species as they consist of a group of related species. Genus are of various types based on the number of species present like monotypic (one genus present), and polytypic (several species present). For e.g., the genus Panthera constitutes both lion and tiger.

• Family: This taxonomic category consists of related genera having similar characteristics. For e.g., the families Canidae, Felidae, Ursidae, etc come under one order Carnivora.

• Order or Cohort: This taxonomic category is more specific than the class as it consists of one or more similar families. The class Mammalia consists of around twenty-six orders that include primates, Carnivora, etc.

• Class: It was the most general taxonomic category before the introduction of phyla. In the animal kingdom, there are around 108 classes that include Pisces, reptilia, aves, etc. The categories used in classification now are different from those of the Linnaeus taxonomy.

• Phylum: This category is more specific than the kingdom. In the animal kingdom, there are around thirty-five phyla that include phylum Arthropoda, Chordata, etc.

• Kingdom: The highest level of classification is the kingdom which is further divided into various subgroups. The total kingdoms of the living organisms are five in number that includes Monera, Protista, Fungi, Plantae, and Animalia.

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1.4 Taxonomical Aids:

The taxonomical aids help us in the study of knowing our bioresources and are also useful in agriculture, forestry, and industry. It can be used both in the field as well as in the laboratory. There are various taxonomical aids that are sued by the taxonomists that help them in the identification, nomenclature, and classification of organisms.

The important taxonomic area includes herbaria, botanical gardens, museums, zoological parks, and keys.

1.4.1 Herbarium:

A herbarium is a collection of preserved plant specimens that are dried and labelled. The plant species that are collected are first dried, pressed, mounted, and then labelled on the herbarium sheets.

The steps involved in the herbarium technique are as follows:

• Collecting various specimens from different areas.

• Drying the particular specimen by placing them in between the various folds of newspapers or by iron drying them.

• By dipping the specimens in mercuric chloride poisoning is done.

• With the help of a cello tape or glue, mounting the dried specimens on the herbarium sheets.

• Certain specimen parts that are difficult to attach to the sheet, like stems, are stitched so that they stick to their position on the sheet.

• To keep them for a longer time, preserves must be sprayed.

• The labeling for identification of all the specimens must be done at the left side of the bottom corner. The name, date of collection, area of collection, habit, etc must be written.

• Lastly, these herbarium sheets are deposed under the herbarium covers where the rest of the herbarium sheets are covered and packed.

• These herbarium sheets are stored in the cupboards named under their category.

To avoid any confusion each herbarium sheet is to be labeled properly on the right-hand corner at the bottom of the herbarium sheet which includes the scientific name along with author’s name, local name, name of family, locality, date of collection, name of the collector, etc. 

The book flora consists of information about the collected specimens, this book gives the information regarding the number of plant species present in the various regions along with their brief description.  is published in the form of a book called flora.

Some important floras of India are Flora of British India, Flora of Delhi, Flora of Madras, Flora of Travancore, etc.

In England, the Royal Botanical Garden at Kew is the largest Herbarium in the world.

Central National Herbarium is the largest Herbarium in India located in the Indian Botanical Garden at Kolkata established in 1787.

1.4.2 Botanical Gardens: They are those gardens that are responsible for the cultivation and preservation of a wide range of plants. These plants are reserved along with their botanical names that are tagged as a label. It is a collection of many species of plants such as succulent plants, garden herbs, and many more exotic plants. Visitors include educational displays, art exhibitions, and open-air theatre musical performances with tours and other entertainments. They are under the control of the universities or the scientific research organizations that relate both herbaria and the research programs together in the botanical sciences. There are more than 600 botanical gardens present all around the world.

The ancient Botanical Garden in the world is the Hanging Gardens of Babylon and comes under the Wonders of the world.

The Royal botanical garden at Kew in England is the largest Botanical Garden in the world and is known as the botanical capital of the world. It was discovered by Bentham and Hooker.

In India Indian Botanical Garden at Kolkata is the largest botanical garden while Tropical Botanical Garden at Thiruvananthapuram in Kerala is the largest tropical botanical garden in Asia.

1.4.3 Museum:

The museum is the place where the artistic and educational plants or animals are preserved, stored, and exhibited to the public. Museums are of various types that include the natural science museum, Science Museum and Zoological Museum.

The Botany and Zoology Departments of all the college's museums are maintained. Animals can also be preserved as they are placed in jars or containers having chemical solutions which help them to preserve for a longer time. The specimens are then identified and labelled and are then stored after their catalog is prepared. 

The plants and animal specimens are also preserved as dry specimens. Like insects after collecting, killing, and pinning are then preserved in insect boxes while in the case of the birds and mammals they are first stuffed and then preserved. The skeletons of the animal are preserved in the museums.

1.4.4 Zoological Parks: They are animal parks within enclosures that display to the public and replicate their natural habitats for behavioral patterns which benefit the animals and visitors. Special climatic conditions are created for the animals and the walkthrough exhibits are there for visitors for non-aggressive species. Visitors are how to avoid eating foods that animals might snatch or to keep their paths away.

The zoological park of Kruger in South Africa is the largest zoo in the world.

The Zoo of Kolkata in India is the largest zoo.

1.4.5 Keys: A key is a taxonomic aid with the help of it the species can be identified among the group of organisms. It helps biologists in the identification of the species and is prepared by a taxonomist. Taxonomic keys consist of a series of prepared statements which are known as couplets and describe the features of some organisms. A key starts with the couplet called the first couplet and then selects the statement which fits the particular specimen. The first couplet then leads to the introduction of another couplet that will result in providing the identity of the specimen. 

There are two types of keys called Dichotomous keys, they are indented keys and bracketed keys. The indented keys consist of the couplets having choices that are equidistant from the left margin and follow the lead that was selected. In a key, each statement is called a lead.

The bracketed keys provide choices side by side of the couplet that is numbered or lettered. It is helpful if the previous couplet is provided; alternate couplets are indented in some bracketed keys.

Other Taxonomic Aids: Various other taxonomic aids include flora, manuals, monographs, and catalogues also serve as taxonomic aids for correct identification.

Flora: The number of plant species present in a particular region comes under flora. The index of the plants that occur in a particular area can be maintained. The first complete flora of India was compiled by Hooker.

Monograph: The handbooks that consist of the details and information regarding one taxon (family or genus).

Manuals: They consist of information regarding the various species found in a particular area and help in their correct identification.

Catalogue: It consists of the list of publications that include the books, periodicals, and dictionaries containing new information for taxonomic studies.

Fast Track Revision:

1. The organisms exhibiting metabolism, cellular organization, homeostasis, growth, reproduction, development, responsiveness, and other characteristics of life are designed as living things.

2. Growth is an irreversible increase in the mass of an individual.

3. Systematics deals with the identification, nomenclature, classification, and evolutionary history of an organism.

4. To determine the exact place and position of organisms is called identification that helps in the set plan of classification.

5. Classification is performed on the basis of similarities and it helps in the arrangement of organisms into groups.

6. The Nomenclature is based on the international code of nomenclature that helps in determining the scientific name of organisms.

7. Binomial nomenclature: It was introduced by Carolus Linnaeus and it includes the system of the naming of an organism having two components or epithets –generic and specific epithet.

8. The arrangement of taxonomic categories in a sequence is called the taxonomic hierarchy while each level in the hierarchy is called taxon.

9. The taxonomic hierarchy of a number of species includes the arrangement of the sequence of taxonomic categories in descending order.

Kingdom → Phylum/Division → Class → Order → Family → Genus → Species

10. Taxonomical aids: They are the techniques and procedures that help in the storage of information of the specimens that help in the identification and classification of organisms.

11. Herbarium is the library that is made up of dried, pressed, and preserved plant specimens.

12. The preserved plant and animal specimens are collected and stored in the museum.

13. The Botanical Garden has a collection of living plants.

14. The place where the wild animals are kept in a protected area that is taken care of by humans are called Zoological parks.

15. The identification of plants and animals that is based upon their similarities and differences is called Key.

16. The book that deals with the plants of a particular region or habitat are called Flora.

17. In biological studies, the comprehensive information of a taxon is called a Monograph.

18. The name of species that are found in a particular area helps in providing the information for identification is called manual.

Introduction on Bilogy Chapter 1 The Living World Class 11 Notes Biology

Chapter 1 biology Class 11 Notes deals with the Living world which means types of organisms present in our surrounding environment, their growth, types of nutrition they possess, types of metabolic activities they show. Living world can also be defined as a place where all living organisms are found. They also cover portion like types of living organism present in our environment and different structural and functional features, habitat in which they can survive, their feeding habits, their migration habits, mode of living like whether they are terrestrial, aquality, etc.

In our ecosystem there are about 5,94,00,000 living organisms present in our environment and each of them show different features based on different categories. In this chapter we also learn about what occurred 3 to 3.5 billion year ago and this evolution is known as organic evolution. All these topics need to be studied thoroughly and for this you all need a well prepared revision note through which you can memorize concepts easily.

Topics Covered in Vedantu Class 11 Chapter 1 Bilogy Notes PDF

Vedantu's notes on the living world Class 11 Notes address themes including the different kinds of organisms that are present in our surroundings, their growth, the different kinds of nutrients they have, and the different kinds of metabolic processes they exhibit. A place where all living things can be located is another way to characterise the living world. They also cover topics like the various types of living organisms found in our environment, their various structural and functional characteristics, the habitats in which they can survive, their feeding and migrating patterns, and their modes of existence, such as whether they are terrestrial or aquatic. All of these topics have been meticulously constructed so that you can easily understand each idea.

Definition of Living

Class 11 Bio Ch 1 Notes The Living World of Vedantu provides the most comprehensive definition of the term ‘living.’ The unique characteristics of living organisms consist of growth, reproduction, ability to sense the surroundings etc. Growth is a common phenomenon present in all living organisms. Other characteristics that define a living organism are:

• Metabolism is a crucial characteristic of living organisms. 

• Cellular organisation of the body is one of the key characteristics of life forms.

• Another defining feature of the living organism is consciousness.

The Living World Class 11 Questions with Answers

1. What Do You Mean By The Diversity in The Living World?

Ans. The living world class 11 Notes let you understand the diversity in the living world thoroughly.

• Biodiversity is one of the key features of the different organisms present on earth.

• To identify a similar class of living organisms by a similar name a unique procedure has been followed. The procedure is known as nomenclature. 

• A universally accepted principle is followed by the biologists to give scientific names to known organisms, as you will know from Biology Class 11 notes Chapter 1. Every name is classified into two components – the generic name and the specific epithet. This procedure of giving names with two components is known as Binomial Nomenclature. 

• Classification is the process of studying all the living organisms. 

• The scientific term for studying the various categories of living organisms is known as taxa.

• Each and every living organism can be divided into different taxa. The procedure of classification is known as taxonomy. 

• The study of the relationship between the various kinds of organisms and their diversities is known as systematic according to NCERT Class 11 Biology Chapter 1 notes.  

2. What are the Taxonomic Categories?

Ans.

• Classification, as Class 11 Chapter 1 Biology Notes PDF will tell you, is not a single step procedure only. It involves various steps. Each and every step represents a rank or category. The category is defined as a taxonomic category.

• The Taxonomic hierarchy is constituted by all the categories. 

• Every single category is defined as the unit of classification. A rank is represented by the category and commonly known as a taxon.  

3. What are Species?

Ans. Class 11th Biology Chapter 1 notes of Vedantu provides an accurate definition of the species. According to the taxonomic studies, a class of individual organisms with fundamental similarities are termed as the species. One species is differentiated from another species on the basis of the morphological differences. 

4. What Do You Mean By Genus?

Ans. You will find in Class 11 Bio Ch 1 notes that genus consists of a class of related species which has more features in common compared to species of other genera.

5. What is Family?

Ans. Chapter 1 Biology Class 11 notes of Vedantu provide the best definition of the word family. As per Biology notes for Class 11 Chapter 1, a class of related genera with still less number of resemblances in comparison with genus and species is known as family. 

6. What is an Order?

Ans. As per the Biology Chapter 1 The living world Class 11 notes, the throng of families which display a few similar characters is known as the order. Order is classified as a higher category.

7. What is a Class?

Ans. According to Class 11 Chapter 1 Biology Notes PDF, a class is formed by the related orders. 

8. What is Phylum?

Ans. If you study the Class 11th Biology Chapter 1 notes thoroughly, you will find that classes consist of animals such as fishes, amphibians, reptiles, birds along with mammals, form the next higher category termed as Phylum. 

9. What is Known As The Kingdom?

Ans. In the classification system of animals, kingdom Animalia is known as the highest category in which all the animals belong to different phyla. All plants, according to Chapter 1 Biology The Living World Class 11 NCERT notes, from different divisions are categorised under the Kingdom Plantae. It is distinct in nature. 

10. What are Taxonomical Aids?

Ans. 

• In The Living World Class 11 notes, it is mentioned that taxonomic studies of different species of plants, animals and other organisms are helpful in agriculture, forestry, industry etc. 

• Perfect classification and identification of organisms are needed in these studies.

11. What is Herbarium?

Ans. The living world Class 11 notes define that the storehouse of gathered plant specimens is known as the Herbarium. The collected plant specimens are dried, pressed and preserved on sheets.

Benefits of Refering to Vedantu The Living World Class 11 Notes

There are various reasons behind choosing Vedantu as the study partner. The reasons are as follows:

• The notes are composed of various experienced professors of Vedantu.

• Vedantu’s notes are prepared to keep the focus fixed on the CBSE exam.

• You can find several previous year question papers at the end of the Class 11 Science Biology Chapter 1 notes. 

• You can access the materials from the official website of Vedantu very easily and download them for future purposes also.

• The PDF form is entirely free of cost.

From the above article, you can get the perfect knowledge about the chapter The Living World. It is a very important chapter from the exam perspective. Notes of Chapter 1 Class 11 Biology will definitely assist you to achieve your goals.

Importance of Class 11 Chapter 1 Biology Notes PDF

Biology as a subject needs full focus, practice, revision and thorough studies as it is totally a theoretical and conceptual subject. Class 11 Chapter 1 Biology Notes PDF has a total of 22 chapters and each chapter has different basics and concepts and this is the reason biology needs full focus while studying. As memorising all topics is not that much easy so to make them easy you all need well prepared revision notes of each chapter.

Vedantu prepares exactly the kind of notes which everyone wants while studying. In Vedantu biology notes we cover all shorts of important topics and very very important topics in a highlighted form for your easy understanding. Along with notes we also provide you with important questions based on each topic so that you can also practice questions as the more you practice the more easily you grasp concepts.

As revision is one of the most important keys if you want to make that concept permanent in your mind as this will really help you in performing well in your academics. If you are neglecting revision then you are compromising with your studies.

How is Vedantu The Living World Class 11th Biology Chapter 1 Notes Helpful?

• Class 11th Biology Chapter 1 notes prepared by vedantu categories concepts of each chapter in a very precise and creative way to make you learn concepts easily. We prepared notes by keeping in mind the mental stability of each student.

• Going through biology revision notes prepared by Vedantu again and again will definitely help you in performing well in your academics and other competitive exams like NEET, PAT, etc.

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• Along with class 11 chapter 1 biology notes PDF we also provide you with important questions of the chapter at the ends so that by practising them you can increase your speed and accuracy of solving questions.

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Conclusion

The Class 11 Biology Chapter 1 notes on The Living World by Vedantu provide a clear and concise understanding of the fundamental concepts. The notes cover essential topics such as biodiversity, classification, and nomenclature in simple human language, making it accessible for students. Vedantu's approach ensures that complex biological concepts are explained in an easily digestible manner, aiding students in building a solid foundation for further studies. The notes emphasize the importance of understanding the living world and its diverse forms, setting the stage for a comprehensive exploration of biology in subsequent chapters.