Biology, 28.11.2021 05:00, thevampsrock3

Mallard ducks secrete preen oil from a gland above their tail feathers. Mallards use their beaks to collect preen oil and work it into their feathers. This gives their feathers a waterproof quality and prevents water from collecting and soaking into their feathers. To which group of organic molecules do oils belong?

nucleic acid

lipid

protein

carbohydrate

Answers: 2

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Mallard ducks secrete preen oil from a gland above their tail feathers. Mallards use their beaks to...