Answer the following statements true (T) or false (F)
1. Implantation of the blastocyst into the uterine wall is correlated with the degeneration of the corpus luteum.
2. Menstruation is initiated when progesterone levels increase.
3. The length of a pregnancy is influenced by the size of both the mother and the embryo.
4. The placenta develops from the endometrium while the fetus develops from embryonic tissue.
5. There is no possibility of a male contraceptive ever being developed for humans.
1. FALSE
2. FALSE
3. TRUE
4. FALSE
5. FALSE
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Approximately half of known animal carcinogens can be detected by the Ames test.
Answer the following statement true (T) or false (F)
A fundamental property of DNA's nitrogenous bases that is necessary for the double-stranded nature of its structure is ________
Fill in the blank(s) with correct word
Where is the electron transport chain of photosynthesis located?
a. cristae b. mitochondria c. chloroplast stroma d. thylakoid membrane e. outer chloroplast membrane
Name one benefit and one challenge to using genetic methods to identify microbes
What will be an ideal response?