7.4 Classification and evolution

Question 1

What is it called when we put organisms into different groups?

Answer 1

The Natural Classification System

Question 2

What determines whether or not two organisms are in the same group?

Answer 2

The differences and the similarities between them

Question 3

What are the 3 largest groups

Answer 3

Plant, animal and microorganism Kingdoms.

Question 4

What is the smallest group in the classification system?

Answer 4

Species

Question 5

What determines whether or not to organisms are members of the same species?

Answer 5

They must be similar

Must be able to breed together to produce FERTILE offspring

Question 6

Give an example of two animals from difference species which can breed together. Why are they different species when they can produce offspring

Answer 6

horse and donkey (mule). Mules are infertile

Question 7

What is an evolutionary tree?

Answer 7

Models that can be drawn to show the relationships between different groups of organisms and if they had common ancestors. Will show lines that have become extinct and have divided into sub groups.