Trophic efficiency is:
a) how much food a carnivore can eat in one meal.
b) the proportion of energy that is transferred between trophic levels.
c) when plants capture energy from the sun.
d) the breaking up of dead biomass by detritivores
Ans: b) the proportion of energy that is transferred between trophic levels.
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In human females, what process causes milk production?
A. Stimulation of the alveoli of the mammary glands by prolactin from the anterior pituitary gland. B. Stimulation of the alveoli of the mammary glands by oxytocin from the anterior pituitary gland. C. Stimulation of the alveoli of the mammary glands by prolactin from the posterior pituitary gland. D. Stimulation of the alveoli of the mammary glands by oxytocin from the posterior pituitary gland. E. Stimulation of the alveoli of the mammary glands by LH from the anterior pituitary gland.
Why is solar energy considered to be a better option in mitigating climate change?
A. Solar energy is not considered to be a better option for climate change mitigation. B. They absorb greenhouse gases, preventing them from causing heat to be trapped in the earth's atmosphere. C. It releases far less carbon dioxide into the atmosphere compared to burning fossil fuels. D. They absorb the sun's rays, preventing them from heating up the earth.
The majority of naturally occurring amino acids are
A) acidic and polar. B) basic and nonpolar. C) acidic and nonpolar. D) neutral and nonpolar. E) neutral and polar.
Which of the following hormones can make a person susceptible to infection when administered for too long as a drug?
A) glucagon B) growth hormone C) glucocorticoids D) antidiuretic hormone