What are homologous structures?
Evolution Test Review - Biology I

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Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Structures in different species that are similar due to shared ancestry, such as the forelimbs of humans, horses, and whales.
2.
FLASHCARD QUESTION
Front
What is an adaptation?
Back
A trait that helps an individual survive and reproduce in its specific environment.
3.
FLASHCARD QUESTION
Front
Define natural selection.
Back
The process where organisms that are best suited to their environment survive and pass on their genetic traits.
4.
FLASHCARD QUESTION
Front
What is behavioral isolation?
Back
A type of reproductive isolation where species use unique behaviors to attract mates.
5.
FLASHCARD QUESTION
Front
What is a mutation?
Back
A change in a gene, group of genes, or chromosome that results in a change in the DNA sequence.
6.
FLASHCARD QUESTION
Front
What are analogous structures?
Back
Structures in different species that serve similar functions but do not share a common ancestry, like wings of bats and birds.
7.
FLASHCARD QUESTION
Front
What is genetic drift?
Back
A change in the frequency of an existing gene variant in a population due to random sampling.
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