Topic 4 - Natural Selection and Genetic modification

Question 1

Natural selection

Answer 1

Survival of the fittest ( Characteristics ) leading to evolution

Question 2

What are some natural selection pressures?

Answer 2

Predation, competition for resources and disease

Question 3

Bacterial evidence for Evolution

Answer 3

Antibiotic resistance provides evidence for evolution because it makes the bacteria better adapted to an environment where selection pressures are present.

Question 4

Fossil evidence for human evolution

Answer 4

• ## Humans and chimpanzees evolved from a common ancestor

Question 6

Ardi

Answer 6

**A fossil huminid 4.4Million years old **
- structure of feet - climbs trees
- Long arms and short legs ( like an ape)
- Chimpanzee brain
- Walked upright

Question 7

Lucy

Answer 7

Fossil Hominid 3.4 Million years old

Question 8

Classification

Answer 8

organising living organisms into groups