Answer

1. what is one similarity between natural selection and artificial selection?

a.
humans do the "selecting."
b.
the traits of organisms change over time.
c.
genes do not determine the traits being selected.
d.
the process of selection has been going on for billions of years.

2.why might these male guppies have bright coloration?

a.
female guppies prefer dully colored males.
b.
female guppies prefer brightly colored males.
c.
predators tend to eat more dully colored guppies.
d.
predators tend to eat more brightly colored guppies.

3. what is likely to happen when humans spray pesticides that are not strong enough to kill all the insects they are trying to get rid of?

a.
all of the insects will pass on their genes
b.
none of the insects will pass on their genes
c.
the weakest insects will pass on their genes
d.
the strongest insects will pass on their genes

4. if there were many predators in a particular stream, which guppies would tend to be selected and pass on their genes?

a.
plain guppies
b.
large guppies
c.
small guppies
d.
colorful guppies

5. what effect will taking a dose of antibiotics that is too small have on the bacteria you are trying to destroy?

a.
all of the bacteria will pass on their genes
b.
none of the bacteria will pass on their genes
c.
the weakest bacteria will pass on their genes
d.
the strongest bacteria will pass on their genes