What is evidence for evolution?
Evidence for Evolution

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Evidence for evolution includes fossil records, DNA similarities, and anatomical structures that show how species have changed over time.
2.
FLASHCARD QUESTION
Front
What is a vestigial structure?
Back
A vestigial structure is a body part that has lost its original function through evolution, such as the tiny leg bones in snakes.
3.
FLASHCARD QUESTION
Front
What can fossils tell us about evolution?
Back
Fossils provide a record of past life forms and show how species have changed over time, helping to establish evolutionary relationships.
4.
FLASHCARD QUESTION
Front
What does it mean if two species share DNA sequences?
Back
If two species share DNA sequences, it suggests they have a common ancestor and may have evolved from that ancestor.
5.
FLASHCARD QUESTION
Front
How do scientists determine the age of fossils?
Back
Scientists determine the age of fossils using methods like radiometric dating and studying the layers of sedimentary rock.
6.
FLASHCARD QUESTION
Front
What is the significance of similar DNA in different species?
Back
Similar DNA in different species indicates that they may have evolved from a common ancestor, supporting the theory of evolution.
7.
FLASHCARD QUESTION
Front
What is natural selection?
Back
Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.
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