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Grade 8 Science: Evidence for Evolution & Natural Selection Deep Dive
Name
Date
1.
___ is change in heritable traits in populations over generations.
2.
___ is the mechanism where better-suited individuals survive and reproduce more.
3.
___ are remains or traces of ancient organisms.
4.
Similar body structures from common ancestry are ___ structures.
5.
___ structures look similar but do not share recent common function/ancestry.
6.
DNA similarity between species can indicate shared ___.
7.
___ variation exists in every population.
8.
Adaptations are traits that improve ___ in an environment.
9.
What is natural selection?
10.
Name three types of evidence for evolution.
11.
How do homologous structures support common ancestry?
12.
Why is genetic variation important for evolution?
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