
Define and explain variation with examples.
Answer
504k+ views
2 likes
Hint: Variation in terms of biology is any difference between cells, organisms of any species caused either by the genetic differences or environmental factors.
Complete Answer:
- Variations are the differences present between the individuals of the same species or different species.
- The variation between different species is greater than that of the variation between the individuals of the same species.
Causes of variation:
Two main causes of variation are-
1) Inherited causes of variation
2) Environmental causes of variation
1) Inherited causes of variation:
Variation that results from the passage of genetic information from parents to offsprings is called inherited variation. Example – eye colour, hair colour, lobed or lobeless ears, etc.
2) Environmental causes of variation:
Characteristics of animal and plant species can be affected by environmental factors such as:
Diet, Climate, Lifestyle, Culture
Examples of variation:
- Person’s skin colour
- Hair colour
- Dimples
- Freckles
- Blood type
- Modified leaves of carnivorous plants
- Cheetah with stripes
- Snakes that fly
- Animal that mimic leaves
Note: Variation is too necessary in respect to evolution, without variation evolution cannot take place. Sexual reproduction is a type of reproduction which causes variations between the individuals of the same species.
Complete Answer:
- Variations are the differences present between the individuals of the same species or different species.
- The variation between different species is greater than that of the variation between the individuals of the same species.
Causes of variation:
Two main causes of variation are-
1) Inherited causes of variation
2) Environmental causes of variation
1) Inherited causes of variation:
Variation that results from the passage of genetic information from parents to offsprings is called inherited variation. Example – eye colour, hair colour, lobed or lobeless ears, etc.
2) Environmental causes of variation:
Characteristics of animal and plant species can be affected by environmental factors such as:
Diet, Climate, Lifestyle, Culture
Examples of variation:
- Person’s skin colour
- Hair colour
- Dimples
- Freckles
- Blood type
- Modified leaves of carnivorous plants
- Cheetah with stripes
- Snakes that fly
- Animal that mimic leaves
Note: Variation is too necessary in respect to evolution, without variation evolution cannot take place. Sexual reproduction is a type of reproduction which causes variations between the individuals of the same species.
Recently Updated Pages
Master Class 12 Business Studies: Engaging Questions & Answers for Success

Master Class 12 English: Engaging Questions & Answers for Success

Master Class 12 Economics: Engaging Questions & Answers for Success

Master Class 12 Social Science: Engaging Questions & Answers for Success

Master Class 12 Maths: Engaging Questions & Answers for Success

Master Class 12 Chemistry: Engaging Questions & Answers for Success

Trending doubts
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths

Gautam Buddha was born in the year A581 BC B563 BC class 10 social science CBSE

Fill the blanks with proper collective nouns 1 A of class 10 english CBSE

Why is there a time difference of about 5 hours between class 10 social science CBSE

What is the median of the first 10 natural numbers class 10 maths CBSE

Change the following sentences into negative and interrogative class 10 english CBSE
