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Gerome is studying survival and adaptation of a lizard species that reproduces parthenogenetically, producing females only. If significant climate change were to occur, what might be the prognosis for this species?
A. The lack of a need for gametes would allow rapid reproduction.

B. The lack of a need for finding mates would enable survival under any climatic conditions.

C. Hermaphroditism would result in the ready availability of mates.

D. Low genetic variability may result in a major die-off.

E. High genetic variability would favor survival of those genotypes capable of surviving in the new climate.
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Question 37 of 60 1.667 Points

Darren is a wildlife technician who is sampling specimens from a deer to determine reproductive condition. Where in the deer would he reliably obtain samples of mature spermatozoa?
A. Bulbourethral glands.

B. Epididymis.

C. Seminal vesicles.

D. Prostate gland.

E. Seminiferous tubules.
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Question 38 of 60 1.667 Points

Anna is infertile and although ultrasound imaging shows that she develops large egg follicles, she fails to ovulate. Most likely her ovaries are failing to respond to what hormone?
A. Progesterone.

B. Estrogen.

C. LH.

D. hCG.

E. FSH.
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Part 12 of 18 –

Question 39 of 60 1.667 Points

Marcy is studying the population changes of moose on an island. Which of the following would be most likely to operate as a density-dependent limiting factor?
A. Toxic mercury in the soil.

B. Depth of snow.

C. High wind.

D. Fire.

E. Food supply.
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Question 40 of 60 1.667 Points

In Canada the fertility rate is falling and is presently at 1.5 per woman. Is the Canadian population growing, shrinking, or stable? Ignore immigration and emigration.
A. To determine if the population were growing, shrinking, or stable we would have to know the difference between the birth rate and the death rate.

B. The population is growing, because women are adding 1.5 children per year, which is fifty percent more children per year more than would be added to a stable population.

C. The population is shrinking, as the number of children born to a couple does not replace them — the fertility rate must be at least 2.1 to maintain the population size.

D. To determine if the population were growing, shrinking, or stable we would have to know the difference between the fertility rate and the death rate.

E. The population is shrinking, because although the fertility rate may fluctuate, we are told that it is falling.
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Question 41 of 60 1.667 Points

The population of Greece is 11 million people. The birth rate is 9 per thousand per year and the death rate is 9 per thousand per year. The fertility rate is 1.3 children per woman. Estimate the increase in annual food production required to feed the estimated population size one year from now, ignoring immigration and emigration.
A. Zero percent.

B. 9.0 percent.

C. 9 percent.

D. 1.3 percent.

E. .09 percent.