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Describe the difference between primary and secondary succession.

Primary succession is the colonizing of a new environment that lacks organisms and plant life.

In secondary succession, an area previously occupied by living things is disrupted then recolonized following the disturbance

Explanation:

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.