Classification

Question 1

How many kingdoms did Carl Linneas create?

Answer 1

2 (animals and plants, with a genus and species for each species of animal)

Question 2

Why were there 5 kingdoms rather than 2?

Answer 2

Scientists now understand how organisms evolve
The system now contains organisms in small groups which have derived from a recent, common ancestor

The kingdoms are based on what the cells of an organism look like

Question 3

What are the 3 main domains organisms are split into?

Answer 3

Archaea- no nucleus, genes containing unused sections of DNA

Bacteria- no nucleus, no unused sections of DNA

Eukaryote- cells with a nucleus, unused sections in genes (animals, plants, fungi etc)

Question 4

How do scientists work out how closely related two organisms are?

Answer 4

The more DNA the 2 organisms have in common, the more recently they have evolved from a common ancestor (MORE CLOSELY RELATED)