Answers by FranciscoHen

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What does the sebaceous gland secrete which waterproofs the skin and hair?

answered Jan 6 in Science

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Nitrogen is a very important element to living things, because it is part of nucleotides and amino acids that are the building blocks of nucleic acids and these?

answered Dec 31, 2024 in Science

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Leaves respond to these environmental stimuli by producing less what?

answered Dec 31, 2024 in Science

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How many chambers does the stomach of a crocodile have?

answered Dec 30, 2024 in Science

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Birds have a flow-through respiratory system in which air flows unidirectionally from the posterior sacs into the lungs, then into these?

answered Dec 30, 2024 in Science

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When a plant has what deficiency, guard cells may lose turgor and close stomata?

answered Dec 27, 2024 in Science

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