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slega [8]
3 years ago
6

Another page... really need help ASAP

Biology
1 answer:
myrzilka [38]3 years ago
8 0

18) Cell B to cell A because the receptors of cell A are able to recognize the signals from cell B (signal 1). (3)

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How does mutation relate to variation
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An organism is discovered that thrives in both the presence and absence of oxygen in the air. Curiously, the consumption of suga
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