4.2.2 Classification and evolution

Question 1

what is variation?

Answer 1

Variation means differences between individuals within a species or between different species

Question 2

what is instraspecific variation?

Answer 2

the differences between individuals of the same species

Question 3

what is a species

Answer 3

a group of similar organisms which can interbreed to produce fertile offspring

Question 4

what is interspecific variation

Answer 4

the differences between individuals that belong to

different species

Question 5

give an example of intraspecfic variation

Answer 5

humans - diffeerent skin colour

Question 6

give an example of interspecific variation

Answer 6

snake - ectotherm; human - endotherm.

Question 7

what are the three principals which cause variation?

Answer 7

1. Genetics
2. Environment
3. Genetics and environment