Why did the grouper, parrotfish, and angelfish populations rise? Why did the sea urchins decline? How did all of this affect the algae population? PLEASE HELP!

Explanation:

for the first question: the population of these fish species rise because the animals population who eats them is declining.

second question : the sea urchins prey declined, therefor, sea urchins starve,

third question: algae will become to less at some point.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

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