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with more atmospheric carbon dioxide to convert to plant matter in photosynthesis, place able to grow more. Photosynthesis has no negative effect on Carbon Cycle. Carbon Cycle has a negative effect on photosynthesis.
More Carbon dioxide is not necessarily needed in Photosynthesis. </span>
I would say immigration only.
emigration would theoretically reduce the genetic variation as unique individuals leave, but immigration would bring unique traits into circulation in an ecosystem.
I'm not super great at biogy tho so this might not be right... :)
Answer:
Can destroy habitats and food supply
Explanation:
