Why does the removal of one species in an ecosystem often lead to a domino effect?
ESL Ecology Version 2

Quiz
•
Biology
•
10th Grade
•
Hard
Stacy Fulton
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Other species rely on it for food, shelter, or population control
Ecosystems are built to function without any single species
Decomposers will take over the role of the missing species
It allows invasive species to immediately replace the missing species
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the reintroduction of wolves in Yellowstone National Park demonstrate the importance of predators in an ecosystem?
It showed that predators increase prey populations by forcing them to reproduce faster
It allowed trees and shrubs to recover by controlling the elk population
It led to the extinction of smaller predators in the area
It reduced biodiversity by eliminating competing species
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are omnivores considered more adaptable than strict herbivores or carnivores?
They can switch food sources depending on availability
They are immune to most diseases
They reproduce faster than other species
They require less water and shelter to survive
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the biggest risk of invasive species in an ecosystem?
They usually increase biodiversity and strengthen food chains
They outcompete native species and disrupt ecological balance
They prevent climate change from affecting native species
They improve the soil and increase plant growth in their new environment
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
How does climate change directly affect predator-prey relationships in the Arctic?
Rising temperatures force prey species to migrate, making hunting harder for predators
Predators become herbivores due to food shortages
Prey species reproduce more quickly, leading to overpopulation
Ice formations grow thicker, allowing predators to hunt more easily
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are keystone species considered crucial to their ecosystems?
They regulate populations of other species and maintain ecological stability
They are always at the top of the food chain
They are the most abundant species in their environment
They survive independently, without relying on other species
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would likely happen if decomposers disappeared from an ecosystem?
Soil would become richer in nutrients, benefiting plant life
Waste and dead organisms would accumulate, and nutrient cycles would break down
Predators would become primary producers to compensate for the loss
Herbivores would take over the role of decomposers to sustain the ecosystem
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