
STAAR Review Biology Category 3
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a homologous structure?
Back
A homologous structure is an anatomical feature in different species that is similar in structure but may serve different functions, indicating a common ancestor.
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 human appendix.
3.
FLASHCARD QUESTION
Front
What is the scientific name of an organism composed of?
Back
The scientific name of an organism is made up of the genus and species name.
4.
FLASHCARD QUESTION
Front
What does the similarity in bone arrangements among different species suggest?
Back
It suggests that these organisms share a common ancestor.
5.
FLASHCARD QUESTION
Front
What hypothesis does Charles Darwin's observation of finches on the Galápagos Islands support?
Back
It supports the hypothesis that these finches descended from a common ancestor.
6.
FLASHCARD QUESTION
Front
Which organisms are least closely related?
Back
Organisms that share a domain are least closely related compared to those that share a family, genus, or species.
7.
FLASHCARD QUESTION
Front
What is the significance of the genus in biological classification?
Back
The genus is a rank in the biological classification that groups species that are closely related and share a common ancestor.
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