brookedunlap030 brookedunlap030

19-05-2018
Biology

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How can one species be a sign (or indicator) that and ecosystem is healthy or unhealthy? Describe one example of an indicator species.

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alexrayne alexrayne

19-05-2018

A bullfrog is a sign of a healthy ecosystem. If you hear bullfrogs where you are fishing, you are in a healthy ecosystem. There are fewer frogs today than there was like 20 years ago

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