The primary function of the loop of Henle is:
A. to generate a concentration gradient
between the inner medulla and outer cortex.
B. to dilute the filtrate passing through the
loop.
C. to concentrate the filtrate passing through
the loop.
D. selective reabsorption of glucose and
other solutes into the bloodstream.
E. active secretion of other wastes from the
bloodstream.
A
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Antibodies present in mom's milk primarily belong to the _______ class.
A. IgG B. IgM C. IgA D. IgE
What is the order of the central dogma of biology?
A. DNA-->protein-->RNA B. Protein-->RNA-->DNA C. DNA-->RNA-->Protein D. RNA-->DNA-->Protein
Mannose sugar occurs on the surface of some bacteria and fungi and can trigger the
A. release of cytotoxins by NK cells. B. release of histamines by basophils. C. classical pathway of complement activation. D. lectin pathway of complement activation. E. release of NETs by neutrophils.
A rancher is suspected of shooting wolves near Yellowstone National Park, and you have been enlisted to go have a chat with him. The rancher doesn't see any benefit to having the wolves there. What do you say?
A. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a population with explosive, exponential growth. Wolves help reduce the carrying capacity, keeping the population at a reasonable level." B. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a population with explosive, density-dependent growth. Wolves help reduce the age structure, keeping the population at a reasonable level." C. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a metapopulation. Wolves help reduce the biotic potential, keeping the population at a reasonable level." D. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a population with explosive, logistic growth. Wolves help reduce the fecundity rate, keeping the population at a reasonable level."