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16 Cards in this Set
- Front
- Back
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Living things get what they need to live from their
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environment
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All living things need
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food, water, shelter
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Environment?
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The things, both living and nonliving, that surround a living thing.
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Ecosystem?
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The living and nonliving in an environment
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Population?
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A group of the same kind of living thing that all live in one place at the same time
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Community?
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All the populations of organisms that live in an ecosystem
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Habitat?
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The place where a population lives in an ecosystem
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When many kids of living things share an environment, they must also share the
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things we need
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What make sup an ecosystem?
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The living and nonliving things that interact in an environment.
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What are some natural events that can change an ecosystem?
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1. People cut down trees to build homes and this removes possible habitats for animals 2. Beavers build damns and lodges that block streams or destroy trees that other animals live-in. 3. People drive cars and it increases air pollution
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Sometimes the changes people make are for the betterment of an ecosystem. List a few
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1. They may add irrigation to dry areas to grow crops 2. They may plant new forests where old ones have burned down.
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Some changes made by people can harm and ecosystem. List a few.
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1. Removing trees can cause erosion. 2. Destroying habitats can cause animals to leave and it can cause plants to disappear.
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A pond that contains water lilies, frogs, fish, insects, and cattail, is an example of
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community
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Why do ecosystems change?
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Because of nature and because of the activities of living things.
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A pond that contains water lilies, frogs, fish, insects, and cattail, is an example of
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community
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Why do ecosystems change?
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Because of nature and because of the activities of living things.
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