Answer:In ecology, a niche is the match of a species to a specific environmental condition. It describes how an organism or population responds to the distribution of resources and competitors and how it in turn alters those same factors.
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the cell membrane would expands
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if sex cells were identical, there won't be genetics variations and we will just all be identical to our parents. genetic variation allows us to better adapt and survive
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3.Oceans reflect the Sun’s energy back through the atmosphere into space.
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