Tobias drank from a contaminated water fountain
Answer:
B: <em>mitochondria produce the water from oxygen and the chloroplast produces oxygen from water.</em>
Explanation:
Answer:
b. They express the appropriate receptor.
Explanation:
The signal transductions are extraordinarily specific and sensitive. Specificity is achieved by a <u>precise molecular complementarity between the signal molecules and the recepto</u>r. For example, the thyrotropin-releasing hormone produces a response in cells of the adenohypophysis, but not in hepatocytes, which lack the receptors to this hormone.
