Three of the four answers listed below produce
portions of the semen. Select the
EXCEPTION.
a. epididymis
b. prostate
c. seminal vesicle
d. bulbourethral gland
A
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Given that fertility rate is defined as each woman producing exactly enough offspring to replace herself and her offspring's father, if the fertility rate is sustained for a generation, then _____
A) r = 0 and there is zero population growth B) 0 < r < 1 C) r = 1 D) r > 1 E) population size is at carrying capacity
The histone octamer forms a tightly packed particle, but the N-termini that protrude from the octamer are less ordered. Which is the best explanation for this observation?
A. The charges on the amino acid residues in the N-terminal tails are primarily acidic and repel each other. B. The charges on the amino acid residues in the N-terminal tails are primarily basic and flex to accommodate the DNA. C. The N-terminal tails must be flexible because they bind to and then release DNA during transcription. D. The N-terminal tails must be more flexible because they form intermolecular contacts with other nucleosomes. E. The N-terminal tails must be more flexible because they interact within the minor groove of DNA.
How long does it take a sperm to reach the
oviduct?
a. 3 minutes b. 30 minutes c. 3 hours d. 3 days e. 30 days
An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________
A) an industrialized nation B) a developing nation C) a population with a high average age D) a population with a low survivorship of children