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Theory of Evolution by Natural Selection Quiz
1) As environments change gradually over time, populations also change.
a) true
b) false
2) The change in the traits of a species over time is known as __________.
3) Fossils show that…
a) the traits of animals have changed over time.
b) once animals are adapted to eating something they never change their diet.
c) the traits of animals can be understood in relation to their environment.
d) all of the above
e) a and c, but not b
4) Deer mice in areas where glaciers deposited light-colored sand…
a) are mainly dark colored so they stand out and can easily find mates.
b) are mainly light colored so they can hide from predators.
c) are striped so that they confuse predators.
d) none of the above
5) Natural selection means a naturally changing environment will result in selection for changing traits.
a) true
b) false
6) Most traits that organisms have are usually entirely harmful or entirely beneficial.
a) true
b) false
7) An individual’s genome can be changed by…
a) viruses.
b) bacteria.
c) radiation.
d) all of the above
e) a and c, but not b
8) Parents will have children with exactly the same genome made up of half of each parents genes.
a) true
b) false
9) Negative traits…
a) are never passed on from generation to generation.
b) become less common in populations over time.
c) can result from environmental change.
d) all of the above
e) b and c, but not a
10) Unfavorable traits never prevent favorable traits from being passed from one generation to the next.
a) true
b) false