Natural Selection
Flashcard
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What causes variations in organisms?
Back
Mutations are changes in the DNA sequence that can lead to variations in traits among organisms.
Tags
NGSS.MS-LS3-1
NGSS.MS-LS4-4
2.
FLASHCARD QUESTION
Front
What did the discovery of DNA and genes prove about mutations?
Back
Mutations create variations and come from genes, supporting the idea that genetic changes can lead to different traits.
Tags
NGSS.MS-LS3-1
NGSS.MS-LS4-4
3.
FLASHCARD QUESTION
Front
What is the term for the change over time in populations of related species?
Back
Biological evolution refers to the process through which species change over time through adaptations and variations.
Tags
NGSS.MS-LS4-1
NGSS.MS-LS4-2
NGSS.MS-LS4-4
4.
FLASHCARD QUESTION
Front
What are body parts that function similarly but have different structures called?
Back
Analogous structures are body parts that serve similar functions but have different evolutionary origins.
Tags
NGSS.MS-LS4-2
5.
FLASHCARD QUESTION
Front
What are structures in organisms that are believed to be remnants of ancestors?
Back
Vestigial structures are body parts that have lost their original function through evolution, indicating a common ancestry.
Tags
NGSS.MS-LS4-2
6.
FLASHCARD QUESTION
Front
What is natural selection?
Back
Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.
Tags
NGSS.MS-LS4-2
NGSS.MS-LS4-4
7.
FLASHCARD QUESTION
Front
What is an adaptation?
Back
An adaptation is a trait that helps an organism survive and reproduce in its environment.
Tags
NGSS.MS-LS4-4
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