Evolution - Inherited Variation and Artificial Selection

Question 1

inherited variation

Answer 1

• organisms varied form one individual to another

- Darwin noticed that plant and animal breeders used inherited variations to improve crops and livestock

Question 2

artificial selection

Answer 2

• selection by humans for breeding of useful traits form the natural variation among different organisms
• ex: domestic animals (dogs, cats) and crop plants

Question 3

variation matters

Answer 3

• Darwin did not know the mechanism behind the variation, but knew that it must be important