Speciation & Extinction Review

Flashcard
•
Science
•
8th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is speciation?
Back
The process by which new species arise from existing species, often due to genetic divergence and environmental factors.
Tags
NGSS.HS-LS4-2
NGSS.HS-LS4-4
NGSS.HS-LS4-5
2.
FLASHCARD QUESTION
Front
What is extinction?
Back
The end of an organism or a group of organisms, typically due to failure to adapt or compete in their environment.
Tags
NGSS.HS-LS4-2
NGSS.HS-LS4-5
3.
FLASHCARD QUESTION
Front
What is background extinction?
Back
The normal rate of extinction of various species as a result of natural processes.
Tags
NGSS.HS-LS4-2
NGSS.HS-LS4-5
4.
FLASHCARD QUESTION
Front
What is mass extinction?
Back
A significant and rapid decrease in the biodiversity on Earth, often due to catastrophic events.
Tags
NGSS.HS-LS4-2
NGSS.HS-LS4-5
5.
FLASHCARD QUESTION
Front
What is the Precambrian era?
Back
The longest geological era, covering about 88% of Earth's history, before the Cambrian period.
Tags
NGSS.HS-ESS1-6
6.
FLASHCARD QUESTION
Front
What is the Quaternary period?
Back
The most recent geological time period, which began about 2.6 million years ago and continues to the present.
Tags
NGSS.HS-ESS2-4
NGSS.HS-ESS3-1
7.
FLASHCARD QUESTION
Front
What is the difference between speciation and extinction?
Back
Speciation is the formation of new species, while extinction is the complete loss of a species.
Tags
NGSS.HS-LS4-5
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