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Which element provides strength to the exoskeleton of clams and oysters
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Which experiment would most likely contain experimental bias ?
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Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from
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Biology, 22.06.2019 10:00
Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.
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the portion of a mature sperm that contains enzymes needed for fertilization is the...
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