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vfiekz [6]
2 years ago
9

Please help! I am having trouble on this exam! No links or will be reported and answer in detail so I understand.

Biology
1 answer:
tester [92]2 years ago
6 0
You can rule out A and C it isn’t permanent or there wouldn’t be any kingdoms found later on. it is also not always accurate. So that leaves b and d. i would say D. Everything in science is based on predictions.
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Answer;

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Explanation;

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-Receptors are the cells or structures that detect sensations. A receptor cell is changed directly by a stimulus. A transmembrane protein receptor is a protein in the cell membrane that mediates a physiological change in a neuron, most often through the opening of ion channels or changes in the cell signaling processes.

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