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Science Explainer- Ecosystem superheroes: Sea otters help keep coastal waters in check
By Formative Staff
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Last updated about 1 year ago
3 questions
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Note from the author:
Instructions
Read the passage
Ecosystem superheroes: Sea otters help keep coastal waters in check
. Then answer the questions below.
Read the passage
Ecosystem superheroes: Sea otters help keep coastal waters in check
. Then answer the questions below.
Required
1
MS-LS2-4
Required
2
MS-LS2-4
Required
1
MS-LS2-4
Question 1
1.
Drag each answer choice into the correct space. Not all answer choices will be used.
A ____________________occurs when a_____________________is removed from an ecosystem, often causing __________consequences to the environment.
Other Answer Choices:
drag_indicator
major
drag_indicator
minor
drag_indicator
keystone species
drag_indicator
trophic cascade
Question 2
2.
Question 3
3.
Drag each organism to the correct box to show if it is a keystone species.
jaguar
sea otters
sea urchin
kelp
Keystone species
Non-Keystone species
How do sea otters contribute to the health of coastal waters? Select
two
correct answers.
by increasing the population of sea urchins
by feeding on marine mammals
by reducing the diversity of underwater plants
by increasing marine organism diversity
by helping to maintain the balance of the kelp forest ecosystem