Question

evolution 101
you are about to play novas evolution lab - a game that will help you to understand the ways scientists piece
together the tree of life. but before you begin mission 1, \training trees,\ watch the introductory video, \evolution
101,\ and answer questions 1 - 5 below.

1. according to the video, what are the two key ingredients to natural selection?

a. predation and the environment
b. reproduction and predation
c. reproduction and variation
d. the environment and variation

Explanation:

Natural selection requires variation within a population (so that there are differences for selection to act on) and reproduction (so that traits can be passed on). Predation and the environment are factors that can influence natural selection but are not the key ingredients. Variation provides the raw material and reproduction allows for the continuation and spread of favorable traits.

Answer:

C. Reproduction and variation