
Unit 3: Homeostasis Test Review 2024
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the role of decomposers in an ecosystem?
Back
To break down dead organic matter.
2.
FLASHCARD QUESTION
Front
What is carrying capacity in an ecosystem?
Back
The maximum population size of a species that an environment can sustain indefinitely.
3.
FLASHCARD QUESTION
Front
What begins ocean acidification?
Back
Carbon dioxide released from combustion (burning of fossil fuels).
4.
FLASHCARD QUESTION
Front
What is a primary consumer in a food chain?
Back
An organism that eats producers; for example, a grasshopper.
5.
FLASHCARD QUESTION
Front
How much energy is typically passed on to each trophic level in an ecosystem?
Back
About 10%.
6.
FLASHCARD QUESTION
Front
Define homeostasis.
Back
The ability of an organism to maintain a stable internal environment despite external changes.
7.
FLASHCARD QUESTION
Front
What is a food chain?
Back
A linear sequence of organisms through which nutrients and energy pass as one organism eats another.
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