6. How do ecosystems change over time?

Q1) Endangered
Q3) The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ... When prey becomes more scarce, the predator population declines until the prey is again more abundant. Therefore, the two balance each other. When the predators are removed, prey populations explode.
Q4) pioneer species
Q5) desertification
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