Biology

Question

Why do tadpoles and frogs have a 0 point value on the pollution tolerance

scale for macroinvertebrates?

Answer

Tadpoles and frogs are sensitive to pollution and are not tolerant of it, so they have a 0 point value on the pollution tolerance scale for macroinvertebrates.

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The pollution tolerance scale for macroinvertebrates is a measure of how tolerant a species is to pollution. Tadpoles and frogs are very sensitive...