Unit 7 • Vocabualry Words Flashcards
1
Q
_________ is when populations gradually change overtime.
A
Evolution
2
Q
The practice by which humans select plants or animals for breeding based on desired traits is _____________.
A
artificial selection
3
Q
____________ is the process by which organisms that inherit advantageous traits tend to reproduce more successfully than other organisms do.
A
Natural selection
4
Q
_________ are natural differences.
A
Variations
5
Q
An inherited trait that helps an organism survive and reproduce in its environment is an __________
A
adaptation
6
Q
_________ is when all the members of a species have died.
A
Extinction
7
Q
The remains of once living organisms are called _______
A
fossils.
8
Q
All of the fossils discovered make up the _____________
A
fossil record.
