Biotic Factors in Ecosystems
Explore biotic factors, their roles as producers, consumers, and decomposers, and their interactions within food webs.
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Biotic Factors in Ecosystems
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Read each question carefully and answer to the best of your knowledge. Some questions may require you to refer to the provided image.
1. Which of the following best defines a biotic factor?
Any non-living component of an ecosystem.
Any living or once-living component of an ecosystem.
The physical environment of an ecosystem.
The climate and weather patterns of an ecosystem.
2. Which of the following is an example of a producer in an ecosystem?
Fungus
Deer
Grass
Wolf
3. Organisms that obtain energy by consuming other organisms are called .
4. Decomposers, such as bacteria and , break down dead organic matter.
5. Explain the difference between a primary consumer and a secondary consumer.
6. Observe the food web below and answer the questions that follow.
a) Identify one producer from the food web.
b) Name one organism that is both a primary and secondary consumer.
c) If the population of snakes decreased significantly, what impact might this have on the populations of mice and hawks?
7. Abiotic factors are living components of an ecosystem.
True
False
8. All biotic factors in an ecosystem are ultimately dependent on producers for energy.
True
False
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