In a normal mammalian birth, how does the body guarantee that birth proceeds to completion?
A. Via negative feedback-stretching of the uterus by the descending fetus induces release of FSH and LH from the posterior pituitary causing even stronger uterine contractions.
B. Via negative feedback-stretching of the uterus by the descending fetus induces release of prostaglandins from the posterior pituitary causing weaker uterine contractions.
C. Via positive feedback-stretching of the uterus by the descending fetus induces release of prolactin from the posterior pituitary causing even stronger uterine contractions.
D. Via positive feedback-stretching of the uterus by the descending fetus induces release of oxytocin from the posterior pituitary causing even stronger uterine contractions.
Answer: D
You might also like to view...
In a monohybrid cross AA × aa, what proportion of heterozygotes is expected among the F2 offspring?
A) 1/4 B) 1/2 C) 3/4 D) All are heterozygotes. E) None are heterozygotes.
The two image-forming lenses of a compound light microscope are
a. the condenser and objective. b. the condenser and the ocular. c. the objective and ocular. d. none of these choices.
Excess glucose in the human diet can result in
accumulations of a. pyruvate. b. NADH. c. fat. d. lactate. e. ATP.
Most viruses cannot be seen by light microscopy.
Answer the following statement true (T) or false (F)