Natural Selection and Evolution
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
+6
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Natural Selection?
Back
Natural Selection is the process by which organisms that are better adapted to their environment tend to survive and produce more offspring. It is a key mechanism of evolution.
Tags
NGSS.MS-LS4-2
NGSS.MS-LS4-4
2.
FLASHCARD QUESTION
Front
What is Evolution?
Back
Evolution is the change in the heritable characteristics of biological populations over successive generations, driven by processes such as natural selection, mutation, and genetic drift.
Tags
NGSS.MS-LS4-1
NGSS.MS-LS4-2
NGSS.MS-LS4-4
3.
FLASHCARD QUESTION
Front
What is a Cladogram?
Back
A cladogram is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.
Tags
NGSS.MS-LS4-2
4.
FLASHCARD QUESTION
Front
What does 'fitness' mean in an evolutionary context?
Back
In evolution, 'fitness' refers to an organism's ability to survive and reproduce in its environment. It is often measured by the number of offspring an organism produces.
Tags
NGSS.MS-LS4-4
5.
FLASHCARD QUESTION
Front
What is Variation in a species?
Back
Variation refers to the differences in physical traits among individuals of the same species, which can be caused by genetic differences, environmental factors, or a combination of both.
Tags
NGSS.MS-LS3-2
NGSS.MS-LS4-4
6.
FLASHCARD QUESTION
Front
What is an adaptation?
Back
An adaptation is a trait that has evolved through natural selection, allowing an organism to better survive and reproduce in its environment.
Tags
NGSS.MS-LS1-5
NGSS.MS-LS3-1
NGSS.MS-LS4-2
NGSS.MS-LS4-4
7.
FLASHCARD QUESTION
Front
What is the significance of mutations in evolution?
Back
Mutations are changes in the DNA sequence that can lead to new traits in organisms. They are a source of genetic variation, which is essential for natural selection.
Tags
NGSS.MS-LS3-1
NGSS.MS-LS4-4
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