1.
Summarize the experimental evidence that Daphnia require three cues to trigger sexual reproduction. Discuss what these cues indicate about the environment. Generate a hypothesis for why sexual reproduction is adaptive for these animals.
To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.
2.
Compare and contrast spermatogenesis with oogenesis. How do these two processes differ with respect to numbers of daughter cells produced, gamete size, and timing of the second meiotic division?
To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.
3.
The drug RU-486 blocks progesterone receptors in the uterus. Why does this drug end pregnancy in humans, even if implantation has occurred?
To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.
4.
Explain the difference between negative and positive feedback in hormonal control of the human menstrual cycle. How is it possible that estrogen inhibits LH release at one point of the reproductive
cycle but stimulates its release at another point?
To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.
5.
Why are pregnant mothers advised to refrain from smoking and from drinking alcoholic or caffeinated beverages?
To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.
