Ecology ----> Keystone
Quiz
โข
Biology
โข
9th - 12th Grade
โข
Medium
+6
Standards-aligned
Grace Rousseau
Used 2+ times
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33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
What is a keystone species?
A species that is most abundant in an ecosystem.
A species that plays a critical role in maintaining the structure of an ecological community.
A species that has no predators in its ecosystem.
A species that can live in a variety of ecosystems.
Tags
NGSS.MS-LS2-4
NGSS.MS-LS2-5
2.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
Which of the following is an example of a keystone species?
Cattle
Sea otter
Grass
Mosquito
Tags
NGSS.MS-LS2-2
NGSS.MS-LS2-4
NGSS.MS-LS2-5
3.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
How can the removal of a keystone species affect an ecosystem?
It can increase biodiversity.
It can lead to a more stable ecosystem.
It can cause a trophic cascade and disrupt the ecosystem balance.
It has no significant effect.
Tags
NGSS.MS-LS2-3
NGSS.MS-LS2-4
NGSS.MS-LS2-5
4.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
Which of the following best describes a food web?
A linear sequence of who eats whom in an ecosystem.
A single pathway of feeding relationships among organisms in an ecosystem.
A complex network of feeding relationships among organisms in an ecosystem.
A graphical representation of the energy flow in an ecosystem.
Tags
NGSS.MS-LS2-3
5.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
What happens to energy as it moves up the food chain?
It increases exponentially.
It remains constant.
It decreases due to energy loss at each trophic level.
It is completely recycled.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
6.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
What role do decomposers play in a food web?
They produce their own food through photosynthesis.
They consume living plants and animals.
They break down dead organisms, returning nutrients to the soil.
They are the primary source of energy in an ecosystem.
Tags
NGSS.MS-LS2-3
7.
MULTIPLE CHOICE QUESTION
45 sec โข 1 pt
What could be a direct consequence of removing a top predator from an ecosystem?
A decrease in the population of primary consumers.
An increase in the diversity of plant species.
A decrease in the overall biodiversity of the ecosystem.
An increase in the population of herbivores, leading to overgrazing.
Tags
NGSS.MS-LS2-3
NGSS.MS-LS2-4
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