Evolution

Question 1

why was Darwin’s theory of evolution by natural selection only gradually accepted

Answer 1

• theory challenged religious ideas
• insufficient evidence
• inheritance and variation discovered 50yrs later

Question 2

why did Lamarck’s theory differ from Darwin’s

Answer 2

Lamarck’s theory States changes are inherited during the organisms lifetime

Question 3

describe the process of natural selection

Answer 3

• individual organisms may show wide range of variation
• individuals with characteristics most suited to the environment are most likely to survive
• genes that enabled survival are passed on

Question 4

what does Darwin’s theory of evolution by natural selection suggest

Answer 4

that all species have evolved from simple life forms that first developed over 5bn years ago