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Grade 7 Science: Natural Selection & Adaptation Evidence
Name
Date
1.
___ is the process by which traits that help survival become more common.
2.
An ___ is a trait that helps an organism survive in its environment.
3.
___ provide evidence of organisms that lived long ago.
4.
Similar body structures in different species may show ___ ancestry.
5.
Organisms with helpful traits are more likely to ___ and reproduce.
6.
Over many generations, populations can ___ to their environment.
7.
Variation in traits gives natural selection something to ___ on.
8.
Fossils in deeper rock layers are generally ___ than shallow ones.
9.
What is natural selection?
10.
What is an adaptation?
11.
How do fossils support evolution?
12.
What is common ancestry?
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