An indicator species is an organism whose presence, absence or abundance reflects a specific environmental condition. Indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem.
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i will do a slide! tommorrow i promise
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B
Explanation:
B basically means putting in time and effort will take you further than innate talent at the cost of progressing a little slower.
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