1.
change is a species over time
2.
"Survival of the fittest"
3.
differences in traits of a species
4.
type of bird Darwin studied
5.
leading scientist in the study of evolution
6.
a change in the sequence of DNA
7.
a struggle among organisms over resources or mates
11.
preserved remains of an organism
12.
most specific classification of organism
13.
most broad classification of organism
14.
how well an organism is adapted to survive and reproduce
15.
an inherited trait that helps an organism survive
16.
selective breeding done by humans
19.
when two species evolve together in response to each other
