Researchers are investigating the effectiveness of various treatments on three individuals with a history of increased appetite.
Individual I does not produce leptin but does have functional leptin receptors.
Individual II does produce leptin but does not have functional leptin receptors.
Individual III does not produce leptin and does not have functional leptin receptors.
Required:
Identify the way that leptin produced by fat cells of adipose tissue in the abdomen cansend a signal to the neuroendocrine cells in the hypothalamus.
Answers: 2
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Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?
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Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
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Researchers are investigating the effectiveness of various treatments on three individuals with a hi...
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