Common Ancestry
Flashcard
•
Biology
•
7th - 9th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
What is common ancestry?
Back
The concept that different species share a common ancestor, indicating that they have evolved from a shared lineage.
2.
FLASHCARD QUESTION
Front
What are vestigial structures?
Back
Structures that have lost most or all of their original function through the course of evolution, such as the pelvic bones in whales.
3.
FLASHCARD QUESTION
Front
What is an example of a vestigial structure?
Back
The wings of flightless birds, which are remnants of their flying ancestors.
4.
FLASHCARD QUESTION
Front
What are homologous structures?
Back
Anatomical features in different species that share a common ancestry, such as the forelimbs of humans and bats.
5.
FLASHCARD QUESTION
Front
What are analogous structures?
Back
Features in different species that serve similar functions but do not share a common ancestry, like the wings of insects and birds.
6.
FLASHCARD QUESTION
Front
What is biogeography?
Back
The study of the distribution of species and ecosystems in geographic space and through geological time.
7.
FLASHCARD QUESTION
Front
What is anatomical homology?
Back
The study of similarities in the anatomy of different species to understand evolutionary relationships.
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