The fetus is surrounded by a protective layer of ________ fluid.
A. amniotic
B. fetal
C. embryonic
D. cerebrospinal
Answer: A
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What would be true of the newly formed sex cells in a person possessing a mutation that completely prevents crossover?
A. The new cells would contain abnormal chromosome numbers because crossing over ensures proper division. B. The new cells would have more genetic variability because crossing over limits transmission of maternal and paternal genes. C. The new cells would have less genetic variability because whole chromosomes would only be entirely maternal or paternal. D. The new cells would have less genetic variability because crossing over contributes to proper chromosome shape, so parts of the chromosome would be non-functional.
The 500 ml of air that is inspired is the same 500 ml of air that enters the alveoli during a single breath
Indicate whether the statement is true or false
The hypothalamus
A. is located superior to the thalamus. B. is located inferior to the pituitary gland. C. rests in the sella turcica. D. is also called the neurohypophysis. E. regulates the secretory activity of the anterior lobe of the pituitary gland.
Which of the following is the correct order of events in the ovary?
A. Ovulation, follicular phase, luteal phase B. Luteal phase, ovulation, follicular phase C. Follicular phase, ovulation, luteal phase D. Luteal phase, follicular phase, ovulation