What is an ecosystem?
Biosphere Review

Quiz
•
Science
•
9th Grade
•
Easy
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
An ecosystem is a community of living organisms interacting with their environment.
An ecosystem is all living and nonliving things in an environment and the many ways they interact.
An ecosystem is a group of similar species living in the same area.
An ecosystem is a system of energy flow and nutrient cycling in a specific area.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the difference between a population and a community?
A population consists of individuals of the same species, while a community includes multiple species.
A population includes multiple species, while a community consists of individuals of the same species.
A population is a group of organisms in a specific area, while a community is a group of organisms in a specific ecosystem.
A population refers to the total number of organisms, while a community refers to the interactions between different species.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What are the characteristics of tundra?
Tundra is characterized by permafrost, cold temperatures, and little precipitation.
Tundra is known for its warm climate and high rainfall.
Tundra features dense forests and diverse wildlife.
Tundra has a tropical climate with frequent storms.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does the exponential graph represent in population studies?
The exponential graph shows population size increasing quickly.
The exponential graph indicates a stable population size.
The exponential graph represents a declining population.
The exponential graph illustrates random population fluctuations.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does carrying capacity mean?
The maximum number of individuals an area can support without environmental degradation.
The total number of species that can coexist in an ecosystem.
The amount of resources available in a given area.
The rate at which a population can grow under ideal conditions.
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What factors can lead to sparse population in an area?
Lack of natural resources
High population density
Abundant agricultural land
Mild climate conditions
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do human activities affect ecosystems?
They have no impact on ecosystems.
They can lead to habitat destruction and loss of biodiversity.
They improve biodiversity and ecosystem health.
They only affect urban areas.
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