<span>The position of the carbonyl group.
Both aldoses and ketoses are monosaccharides. They are simple sugars with a Carbon chain. The difference is what's in the position of the carbonyl group: aldoses have an aldehyde group while ketoses have aketone group.</span>
Fertilization --> Embryo --> Fetus
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A. Sediments. Geologic refers to rocks and rock processes over time.