Study Goals Exam 1 Week 2

Question 1

Compared to previous attempts at understanding the relatedness of all living things, what was unique about Darwin’s and Wallace’s biological theory of evolution?

Answer 1

Natural selection occurs because traits very among individuals in a population & individuals with certain traits leave more offspring than others do

Question 2

What evidence indicates that there has been descent with modification from a single, common ancestor?

Answer 2

The fossil record

Question 3

Explain natural selection using Darwin’s four postulates

Answer 3

Natural selection occurs when individuals with certain heritable traits produce more surviving offspring than individuals without these traits. The frequency of these traits increase from one generation to the next.

Question 4

Biological Fitness and Adaptation’s relation

Answer 4

Adaptations increase fitness

Question 5

Fitness

Answer 5

The ability to produce viable, fertile offspring