Which extraembryonic membrane forms the embryonic part of the placenta?
A) allantois B) amnion C) chorion D) yolk sac
Answer: C
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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
The number of __________ typically increases in response to bacterial infections.
A. basophils B. monocytes C. erythrocytes D. eosinophils E. neutrophils
A decrease in the release of neurotransmitter from the photoreceptor would indicate a(n)
A) lack of light reaching the retina. B) decrease in light intensity. C) increase in light intensity. D) change in focus of the lens onto a distant object.
A complex carbohydrate consists of a phosphate group attached to a sugar molecule
Indicate whether the statement is true or false