B1.8 Evolution

Question 1

What was Lamarck’s theory?

Answer 1

The frequently used characteristics in an organism grows while the little used will disappear
All organisms gradually grow in complexity simple ones disappear

Question 2

What was Darwin’s theory?

Answer 2

All forms of life are related and have evolved from similar organisms
Genetic mutations beneficial will be kept and passed on (natural selection)
If not it will not pass that gene on

Question 3

What does natural selection mean?

Answer 3

Nature choosing

Question 4

Describe the process of forming new species

Answer 4

1) Populations become separated
2) Separated groups evolve to suit their new different environments
3) The 2 sub populations have changed so much they cannot interbreed they are separated but closely related