I remember answering this question. The answer would be Option B. Chitin, in arthropods, is a structural carbohydrate that forms their exoskeleton. It is a long chain of polymer of an N-acetylglucosamine. Hope this answers the question.\
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Please mark brainliest
So abiotic means nonliving, so the only abiotic option is B. the gravel on the bottom of the aquarium.
<span>Basicly apical means that it is facing the lumen (of the intestine for example, while the basolateral means all rest (the basal, ("rear") side plus the lateral sides facing the rest of the cells).</span>
Plants reproduction is well idk plants make their own food and are their own being ig.
animals-hunt for food and well have ....animals
