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Biology, 22.06.2019 14:00
Some substances but not other can cross the (blank) membrane of a cell
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Biology, 22.06.2019 14:50
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.
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Biology, 22.06.2019 17:00
Australopithecus robustus was likely the longest-surviving species of australopithecine in south africa. it had: a. large molars, a big face, and a sagittal crest. b. a large body, large teeth, and a sagittal crest. c. a big brain, big teeth, and a big face. d. a big face, large teeth, and a large body
Answers: 3
A man with blood type A, whose mother was type o, has a child with a woman that has type AB blood. W...
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