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- 1. Multiple Choice
. What is an ecosystem?
a living being, such as a human, that eats other living beings in order to survive
the process by which the body of a living thing is broken down by decomposers
one particular area where several kinds of organisms interact with each other
an organism that breathes in oxygen and then breathes out carbon dioxide
- 2. Multiple Choice
What does this passage explain?
This passage explains what the difference between plants and fungi is.
This passage explains what an ecosystem is and how it works.
This passage explains how oxygen is used by the human body after it is breathed in.
This passage explains what happens when a decomposer dies in the forest.
- 3. Multiple Choice
In an ecosystem, different organisms interact with each other. What evidence from the passage supports this statement?
Plants use sunlight, water, and carbon dioxide in a process called photosynthesis.
Forest ecosystems cover about a quarter, or one-fourth, of the total land surface in the world.
Producers are living things that can make their own energy out of non-living resources.
A deer decomposing in the soil provides food for bacteria and nutrients for plants to grow.
- 4. Multiple Choice
Based on the information in the passage, what do all ecosystems have in common?
All ecosystems are home to living beings that interact with each other.
All ecosystems are home to trees, deer, humans, rodents, wolves, hawks, and bacteria.
All ecosystems have an equal number of consumers, decomposers, and producers.
All ecosystems have a few consumers that do not interact with decomposers and producers.
- 5. Multiple Choice
What is this passage mainly about ?
the differences between oxygen and carbon dioxide
different kinds of consumers and the reasons they are "at the top of the food chain"
different organisms in a forest ecosystem and how they interact
what happens when the ecology of a forest is thrown off-balance
- 6. Multiple Choice
Read the following sentence: "Consumers are the living beings who need to eat other organisms to survive." What does the word organisms mean?
environments
waste matter
categories
living things
- 7. Multiple Choice
Choose the answer that best completes the sentence below.
Every organism in the forest can be put in one of three categories, _______ producer, decomposer, or consumer.
namely
although
as a result
earlier
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