Explain what "aquifer" means

An aquifer is a body of rock and/or sediment that holds groundwater.

Explanation:

Answer/Explanation:

An aquifer is an underground layer of permeable rock, sediment (usually sand or gravel), or soil that yields water. The pore spaces in aquifers are filled with water and are interconnected. This causes it to transmits water to wells, springs, etc.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

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