Always 23 because 23+23 is 46 All humans have 46 chromosomes 23 from dad 23 from mom
ATP stand for adenosine triphosphate. It consists of the nitrogenous base adenine and is linked to a sugar molecule. It is necessary for human life because it gives the body energy
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xy is the answer of your question
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Red blood cells and the heart causes response to stimuli
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A physical change effects a substance physically. Examples include cutting, bending, dissolving, freezing, boiling, and melting.
A chemical change effects a substance chemically. Examples include burning, rusting, and digesting.
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