biology exam 2

Question 1

Natural & Sexual Selection

Answer 1

Natural selection is survival of the fittest in the environment, while sexual selection is about attracting mates or competing for mates.

Question 2

Reproductive Isolation mechanisms:

Answer 2

Barriers that prevent species from interbreeding, both before and after mating. Populations are physically separated by geographic barriers such as mountains, rivers, or bodies of water.
Example: Two populations of birds on different sides of a mountain range.

Question 3

Adaptive Radiation:

Answer 3

When one species diversifies into many different forms to adapt to various environments.