A given hormone generally has the same effect on different target tissues. Is this statement TRUE or FALSE? Defend your answer.
What will be an ideal response?
False. A target tissue's response is dependent upon the exact receptor involved, as well as a variety of other factors. For example, insulin causes skeletal muscle to increase its rate of transport of glucose into the cell, but in the liver insulin affects the activity of enzymes not directly related to glucose transport.
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Which structure will produce progesterone, estrogens, relaxin and inhibin?
a) D b) E c) G d) I e) None of these choices
Describe a hypothetical situation in which two isolated human populations evolve very different muscle fiber composition
In other words, what environmental conditions or food-gathering strategies might cause a prevalence of one fiber type (fast-twitch versus slow-twitch) to be more adaptive than another? What will be an ideal response?
Using the figure above, identify the labeled part.
1. Label A: ______________________________
2. Label B: ______________________________
3. Label C: ______________________________
4. Label D: ______________________________
5. Label E: ______________________________
6. Label F: ______________________________
7. Label G: ______________________________
8. Label H: ______________________________
9. Label I: ______________________________
10. Label J: ______________________________
11. Label K: ______________________________
12. Label L: ______________________________
13. Label M: ______________________________
14. Label N: ______________________________
15. Label O: ______________________________
A memory that has lasted over a weekend is described as a
A. long-term memory. B. short-term memory.