In secondary succession, the pioneer species are plants that are adapted to exploit disturbances rather than bare rock. They typically include plants such as grasses, birch trees, and fireweed. Organic matter from the pioneer species improves the soil so other trees and plants can move into the area.
Differences between<span> a </span>physical and chemical change<span> in matter or substances</span>
Answer:
Ion- an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
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Brainliest?