Biology, 17.12.2020 22:30 palmekar000

In what ways does carbon enter the hydrosphere?

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Biology, 21.06.2019 22:00, jessbri5150

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Biology, 22.06.2019 13:20, stefancvorovic1

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

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Biology, 22.06.2019 14:50, megamorph

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit. there is a precise compatibility between the active site and the lactose molecule. specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed. reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.