Variation and Adaptation

Question 1

What was Darwins theory of evolution?

Answer 1

• Random mutations results in variation
• Dome organisms better adapted to environment
• These compete ‘Survival of the fittest’
• Those better adapted are more likely to survive and over time these desirable characteristics are more pronounced

Question 2

What was Lamarck’s theory of evolution?

Answer 2

• Mutations/Adaptations are a result of environment effecting characteristics inherited by offspring; not random

Question 3

What is used as evidence for Darwin’s theory?

Answer 3

Antibiotic-Resistant Bacteria:
used as evidence as if not all bacteria is killed, those most resistant will reproduce

Question 4

What is the definition of the term ‘Species’

Answer 4

Organisms that are considered to be of the same kind if they can produce fertile offspring

Question 5

What is selective breeding?

Answer 5

Breeding organisms that have desired characteristics to produce offspring in which they are more pronounced