Oxygen is important in cellular respiration but it does not come into the reaction until the final stage and acts as the?
an additional source of energy
an enzyme in the reaction
the waste product of respiration
the final hydrogen acceptor

In familial hypercholesterolemia individuals homozygous for the allele causing the disorder completely lack receptors on liver cells that take up cholesterol from the blood stream. heterozygous have one-half the number of receptors while individuals homozygous for the normal allele are phenotypically normal. this is an example of a.epistasis b.complete dominance c. incomplete dominance d. codominance

What did the first language sound like

In the practice of science, this type of reasoning is used to develop explanations.