During gestation, contraction of the myometrium is inhibited by ________, produced by the corpus luteum
A) progesterone
B) estrogen
C) oxytocin
D) prostaglandins
E) inhibin
A
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Why does meiosis pass through two complete cycles?
A. Because two cycles are necessary to produce the proper shape of the gametes B. So that the zygote will have the diploid number of chromosomes C. Because the chromosomes are still double-stranded at the end of meiosis I D. To allow crossing over to occur E. To assure that the gametes will be of the correct size
In a species of insect that lives at cold temperatures, which of the following adaptations to the plasma membrane would help promote membrane fluidity?
A. Thinner glycocalyx B. More cell junctions C. More cholesterol in the membrane D. More integral membrane proteins E. More transmembrane proteins
Which neuron cytoplasmic inclusion is the product of organelle digestion by lysosomes?
A. Neurofibrin B. Glycogen granules C. Acetylcholine D. Lipofuscin E. Myelin
Which cells release hydrochloric acid (HCl) into the stomach?
A) diffuse neuroendocrine system (DNES) cells B) mucous neck cells C) chief cells D) parietal cells