Ch7 Sec 1 Flashcards
1
Q
Fossil
A
The preserved remains or traces of an organism that lived in the past.
2
Q
Adaptation
A
A behavior or physical characteristic that allows an organism to survive or reproduce in its environment.
3
Q
Evolution
A
The gradual change in a species over time.
4
Q
Scientific theory
A
A well-tested concept that explains a wide range of observations.
5
Q
Natural selection
A
A process by which individuals that are better adapted to their environment are more likely to survive and reproduce than others of the same species.
6
Q
Variation
A
A factor in an experiment that can change.
7
Q
Species
A
A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce.
