NCERT Solutions for Chapter 6 Reproduction in Animals Class 8 - FREE PDF Download
NCERT Solutions for Class 8 Science Chapter 6 delves into the fascinating world of how animals reproduce. From tiny insects to large mammals, reproduction is essential for species' survival. This Chapter explores the various methods animals use to reproduce, from simple processes like budding and fission to more complex ones like sexual reproduction. Through easy-to-understand explanations and examples, Class 8 Reproduction In Animals helps students learn about the different reproductive organs and cycles in animals. Class 8 Science Chapter 6 PDF helps students thoroughly understand the main concepts presented in the curriculum.
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Download the FREE PDF of Reproduction In Animals Class 8 Questions And Answers These NCERT Solutions are prepared by the Vedantu Experts and are updated according to the Class 8 Science syllabus. Start with Vedantu to pursue a path of academic excellence!
Quick Insights for NCERT Class 8 Science Reproduction in Animals Question Answer
Class 8 Science Reproduction In Animals covers various reproductive methods observed in the animal kingdom, including asexual and sexual reproduction.
Class 8 Science Chapter 6 Question Answer helps students learn about the structural adaptations of different animals for reproduction, such as the reproductive organs and their functions.
Through examples and diagrams, learners gain insights into the lifecycle of various animals.
Reproduction In Animals Class 8 PDF delves into the process of sexual reproduction, explaining the roles of male and female reproductive organs and fertilisation.
The concepts covered in this chapter are crucial for academic learning and offer insights into real-world phenomena and the diversity of life on Earth.
By engaging with NCERT Solutions for Reproduction In Animals Class 8, students can develop a deeper appreciation for the mechanisms through which life is sustained and propagated in the animal world.
1. Explain the importance of reproduction in organisms.
Ans: Importance of reproduction:
Human reproduction is essential for the continuance of the human species.
It is the process of producing new individuals from the living organisms.
Reproduction ensures the passage of traits and habitats from generation to generation.
Without reproduction the species will be vanished from the earth and there is no world without species.
2. Describe the process of fertilization in human beings.
Ans: Process of fertilization in human beings:
Human reproduction is brought about by formation and fusion of the male and female gametes. The male gametes, i.e. the sperms are produced by the testis and the female gametes, i.e. the ovum is produced by the ovary.
During copulation, the male releases sperm into the female reproductive tract. Since the sperm is a motile gamete, it will swim up the female reproductive tract to reach the ovum in the fallopian tube.
The process of fertilization happens when the male and female gametes fuse together in the fallopian tube. The end product of fertilization is called a zygote, which will develop further and become a foetus in the womb.
3. Choose the most appropriate answer.
a. Internal fertilisation occurs
In the female body.
Outside female body.
In male body.
Outside male body
Ans:
I. In a female body
Internal fertilization takes place inside the female body and external fertilization takes place outside the female body.
b. A tadpole develops into an adult frog by the process of
Fertilisation.
Metamorphosis
Embedding
Budding
Ans: (II) Metamorphosis
Fertilization takes place in human beings by the fusion of gametes and budding is a type of asexual reproduction takes place in parents in forming the buds.
c. The number of nuclei present in a zygote is
None
One
Two
Four
Ans: (II) one
Only one nuclei is present in a zygote.
4. Indicate whether the following statements are true (T) or false (F).
Oviparous animals give birth to young one.
Ans: F
Oviparous animals lay eggs and the young ones develop inside it.
Each sperm is a single cell.
Ans: T
External fertilisation takes place in frogs.
Ans: T
A new human individual develops from a cell called gamete.
Ans: T
Egg laid after fertilisation is made up of a single cell.
Ans: T
Amoeba reproduces by budding.
Ans: F
Amoeba reproduces asexually through binary fission.
Fertilisation is necessary even in asexual reproduction.
Ans: T
Binary fission is a method of asexual reproduction.
Ans: T
A zygote is formed as a result of fertilisation.
Ans: T
An embryo is made up of a single cell.
Ans: F
Embryo is a multicellular structure.
4. Give two differences between a zygote and Foetus.
Ans: Difference between zygote and foetus:
5. Define asexual reproduction. Describe two methods of asexual reproduction in animals.
Ans: Asexual Reproduction:
It is a mode of reproduction that does not entails the union of sex cells or gametes.
There are different types of asexual reproduction, they are binary fission, budding vegetative propagation, spore formation, fragmentation. There is no gamete formation in this type of reproduction. Animals like Hydra, Amoeba undergo asexual mode of reproduction.
Two types of Asexual reproduction are:
Budding: It is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. These buds develop into tiny individuals and when fully they mature and detach from the parets body and become a new independent individual. Example: Hydra.
Binary Fission: In this type of asexual reproduction the body of the organism mainly unicellular organism divides into two. Each of the two daughter cells are alike. Example: Amoeba.
6. In which female reproductive organ does the embryo get embedded?
Ans: The embryo gets embedded in the wall of the uterus for further development.
7. What is metamorphosis? Give examples.
Ans: Metamorphosis:
It means sudden change which happens while developing.
The animals that undergoes metamorphosis are
Butterfly (egg🡪larva🡪pupa🡪adult)
Frog (egg🡪tadpole🡪adult)
8. Difference between internal fertilisation and external fertilisation.
Ans: Difference between internal fertilization and external fertilization:
9. Complete the crossword puzzle using the hints given below. Across
1. The process of the fusion of the zygotes.
6. The type of fertilisation in hen.
7. Term used for bulges observed on the sides of the body of hydra.
8. Eggs are produced here.
Down
2. Sperms are produced in these male reproductive organs.
3. Another term for the fertilized egg.
4. These animals lay eggs.
5. A type of fission in amoeba.
Ans:
1. The process of the fusion of the zygotes - FERTILIZATION
6. The type of fertilisation in hen - INTERNAL
7. Term used for bulges observed on the sides of the body of hydra - BUDS
8. Eggs are produced here - OVARY
Down
2. Sperms are produced in these male reproductive organs - TESTES
3. Another term for the fertilized egg - ZYGOTE
4. These animals lay eggs - OVIPAROUS
5. A type of fission in amoeba – BINARY
NCERT Class 8 Reproduction in Animals- Quick Overview of Detailed Structure of Topics
Important Points from Class 8 Science Chapter 6 PDF
Types of Reproduction:
Asexual Reproduction: Involves one parent; offspring are genetically identical to the parent. Methods include budding, fission, regeneration, and fragmentation.
Sexual Reproduction: Involves the fusion of male and female gametes (sperm and egg) to form a zygote, leading to genetic variation.
Male Reproductive System:
Organs: Testes, vas deferens, penis.
Function: Testes produce sperm, which is transported through the vas deferens and released through the penis.
Female Reproductive System:
Organs: Ovaries, fallopian tubes, uterus, vagina.
Function: Ovaries produce eggs; fertilisation occurs in the fallopian tubes, and the fertilised egg implants in the uterus.
Fertilisation:
Process: Sperm fuses with an egg to form a zygote, usually in the female reproductive tract.
Viviparous Animals:
Give birth to live young.
Examples: Humans, dogs, whales.
Oviparous Animals:
Lay eggs that hatch into offspring.
Examples: Birds, reptiles, amphibians, and most fish.
Benefits of Referring to Vedantu’s NCERT Class 8 Science Chapter 6 Question Answer
Vedantu’s Class 8 Science Reproduction In Animals Question Answer comprehensively explains each topic in Chapter 6, ensuring a thorough understanding of animal reproduction concepts.
Reproduction In Animals Class 8 PDF follows a structured approach, breaking down complex topics like types of reproduction.
The topics like the reproductive systems of animals, fertilisation, and life cycle into small sections, making it easier for students to grasp the content.
Concepts are explained in a clear and simple language, making it accessible for students of all learning levels.
Class 8 Science Reproduction In Animals includes diagrams, illustrations, and charts to help visual learners understand complex concepts more easily.
Class 8 Reproduction In Animals Question Answer helps students learn about the structural adaptations of different animals for reproduction, such as the reproductive organs and their functions.
Vedantu offers supplementary resources such as video lectures, quizzes, and study materials to complement the chapter solutions, providing a holistic learning experience.
Conclusion
Vedantu’s NCERT Solutions for Class 8 Science Chapter 6: Reproduction in Animals is an excellent resource for understanding key concepts like modes of reproduction, fertilisation, and development of embryos. Students should focus on these areas to grasp the essentials of animal reproduction. The solutions simplify complex topics, making them easy to understand and apply. Additionally, practice is crucial as the previous year's question papers often include around 10 questions from this chapter. By studying these solutions, students can confidently prepare for exams and improve their understanding of the subject.
Important Study Materials for Class 8 Science Chapter 5
Students can access extra study materials on the Conservation of Plants and Animals. These resources are available for download and offer additional support for your studies.
NCERT Solutions for Class 8 Science-Chapter wise PDF Links
NCERT Study Resources for Science Class 8
For complete preparation of Science for CBSE Class 8 exams, check out the following links for different study materials available at Vedantu.
FAQs on NCERT Solutions for Class 8 Science Chapter 6 Reproduction In Animals
1. Explain the difference between a Zygote and a Foetus?
The difference between a zygote and a foetus is
Zygote– Zygote is the first stage of development. It is developed by the fusion of male and female gametes. It is a single cell. The zygote is divided to form an embryo. It lasts for a few weeks and then develops into the next stage.
Foetus– Foetus is the last stage of the development of an organism. Foetus usually undergoes an internal development. The stage of an embryo that shows all the main body parts of a mature organism.
2. Explain two methods of Asexual reproduction in animals?
The two modes of asexual reproduction are:
Binary Fission in Amoeba– It is asexual reproduction in which one cell is divided into two equal parts. It is a unicellular organism that consists of a cell membrane, cell wall and cytoplasm. In this process, the nucleus of amoeba is first divided into two parts to form daughter nuclei.
Budding in Hydra– Organisms like hydra use regenerative cells for reproduction by the process of budding. The first step in this process is the formation of buds and then it develops as a small outgrowth on the parent’s body. As the bud develops, it receives the characteristics of the parent organism.
3. List out the important topics covered in NCERT Solutions for Chapter 6 of Class 8 Science?
The following topics have been covered in NCERT Solutions for Chapter 6 of Class 8 Science:
Modes of Reproduction (Sexual and Asexual)
Male and Female Reproductive Organs
Fertilization
Development of an Embryo
Viviparous and Oviparous animals
Asexual Reproduction (Budding and Binary Fission)
With the help of NCERT Solutions, you will learn all about these concepts so that acing your exams becomes a cakewalk.
4. What is the advantage of using the NCERT Solutions for Chapter 6 of Class 8 Science provided by Vedantu?
NCERT Solutions for Chapter 6 of Class 8 Science provided by Vedantu are the best choice to understand the Chapter ‘Reproduction in Animals’. The experts curate these solutions at Vedantu to provide the most accurate, high-quality answers to clarify all their doubts and answer the questions in the exams with ease. Solutions at Vedantu are curated by experts and are available free of cost.
5. What is Reproduction? Why is Reproduction an important topic of Chapter 6 of Class 8 Science?
Reproduction is the procedure through which a living organism produces more of its kind. Reproduction helps to continue their generation. It is important to study and understand in Class 8 that if there is no reproduction, no living thing can continue to survive. To understand the concepts related to Reproduction and its importance, you must know the basic points as included in the NCERT Solutions for Chapter 6 of Class 8 Science by Vedantu. These are guaranteed to help you to clear your concepts easily and effectively.
6. What is reproduction in animals? Short answer.
Reproduction in animals is the process used by organisms to produce offspring like them. For a better idea of the concept of reproduction and how to write short answers on that topic, refer to NCERT Solutions for Chapter 6 Reproduction in Animals of Class 8 Science at free of cost on the Vedantu website and on the Vedantu app. This will help you to understand the concepts easily and clearly. With the help of the NCERT solutions by Vedantu, you can write down the answers effectively for the exams.
7. What is fertilization, according to Chapter 6 of Class 8 NCERT?
The fusing of the male gamete with the female gamete to form a zygote with the process of sexual reproduction is referred to as fertilization.
Fertilization has been explained in depth in the NCERT Solutions for Chapter 6 of Class 8 Science by Vedantu. If you want to get a good grip of the topics and score well in the exam, it is advisable to download these solutions for quick reference.
8. Why is studying reproduction in animals in class 8 important?
Understanding animal reproduction is essential as it explains how species propagate and ensure their survival. It also helps in understanding the biological processes involved in the continuity of life and genetic variation.
Vedantu’s Class 8 Reproduction In Animals Question Answer offers step-by-step explanations for all the topics covered in the Chapter, helping students understand the process and logic behind each concept.
9. What are the key differences between viviparous and oviparous animals discussed in Reproduction In Animals Class 8 Questions and Answers?
Viviparous animals give birth to live young, and the embryo develops inside the mother's body. Oviparous animals lay eggs, and the embryo develops outside the mother's body within the egg.
