What is a key characteristic of a healthy ecosystem?
Presa

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Science, Biology
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4th - 9th Grade
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No predators present
A balance between prey and predators
An imbalance between prey and predators
Only prey species exist
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does predation help in an ecosystem?
It helps maintain sustainable prey populations
It makes prey species extinct
It reduces the number of prey species
It increases the number of predators
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a prey species that also acts as a predator?
Anchovies
Pacific salmon
Krill
Bears
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do Pacific salmon prey on?
Birds
Bears
Krill and small fish
Large mammals
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which animals prey on Pacific salmon?
Bears and other animals
Anchovies
Small fish
Krill
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