Question

wednesday: true or false

1. ______ natural selection is a random process.
2. ______ an adaptation is a trait that shows up in a whole population over many generations.
3. ______ a mutation must happen before natural selection can occur.
4. ______ individual animals can choose to mutate to fit their environment.

Explanation:

1.

Natural selection is not random. It acts on heritable traits, favoring those that increase survival/reproduction. So the statement is false.

An adaptation is a trait that evolves in a population over generations (due to natural selection) to enhance fitness. So the statement is true.

Mutations introduce genetic variation, which is the raw material for natural selection. Without mutations (or other variation sources), natural selection has no variation to act on. So the statement is true.

Answer:

False

2.