How does any ecosystem transition from primary succession to secondary secession

Ecosystem transition: serious disturbances such as volcanoes, windstorms, fire, anthropogenic factors leads to ecosystem transition (i.e. primary succession to secondary succession). The ecosystem transition which donot eliminates entire life and nutrients from the existing environment.

and after water is usually warmed by the sun the water temperature raises and then evaporates .

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

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