Natural Selection

Question 1

Natural selection is

Answer 1

Survival of the fittest

Question 2

Evolution is

Answer 2

The adaptation of characteristics to survive in their environment.

Question 3

Reasons for evolution

Answer 3

• competition
• predation
• disease

Question 4

Evolution example

Answer 4

• Resistant bacteria to anti biotics

- fossils

Question 5

Examples of human fossils

In chronological order

Answer 5

Ardi - 4.4 million yrs old
Lucy-3.2 million yrs old
Leaky-1.6 million yrs old

Question 6

3 different types of species in human evolution

Answer 6

• ardipithecus
• Australopithecus
• Homo

Question 7

How to date fossils

Answer 7

Stratigraphy-the analysis of rock layers
Structural features- if more simple=older
Carbon dating- use of carbon containing material

Question 8

Classification is

Answer 8

Organising living organisms into groups

Question 9

Their used to be __ kingdoms

Answer 9

5

• animals
• plants
• fungi
• prokaryotes
• Protists

Question 10

These kingdoms are subdivided into

Answer 10

Kingdom
    |
Phylum
    |
Class
    |
Order
    |
Family 
    |
Genus
    |
Species

Question 11

The new system is called

Answer 11

Three domain system
Archaea-look similar to bacteria but have a different genetic code
Bacteria- true bacteria
Eukarya- broad range of organisms