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Evidence for Evolution 2
By Heidi Cooley
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Last updated over 3 years ago
5 questions
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Question 1
1.
How do fossils provide evidence that evolution has happened on Earth?
Fossils show how the sizes of certain animals has changed drastically over millions of years
Fossils show how life forms present today are different than those from the past
Fossils show that some species have gone extinct
Different sedimentary rock layers provide evidence for how the environment has changed over time
Question 2
2.
Scientists compare organisms' DNA to support the theory that all species share a common ____
Separation
Population
Ancestor
Environment
Question 3
3.
Similar structures with different purposes found in different species are known as...
Vestigial structures
Homologous structures
DNA
Fossil record
Question 4
4.
Structures that were used in ancestral species but no longer used in modern species are known as...
Vestigial structures
Homologous structures
DNA
Fossil record
Question 5
5.
Which is not evidence for evolution?
many animals have homologous structures due to common ancestry
We can observe changes in life forms by observing the fossil record
Many animals have vestigial structures from an ancestor
All of these are evidence for evolution