Antibody molecules circulate in lymph, blood, and tissue fluids.
Answer the following statement true (T) or false (F)
True
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The distance through which a microscopic specimen can be moved and still have it remain in focus is called the
(a) field of view. (b) working distance. (c) depth of field. (d) magnification.
Over several generations in a population, inbreeding tends to
A. decrease the relative proportions of homozygotes. B. decrease the likelihood of heterozygotes. C. stabilize the balance of genotypes predicted by the Hardy-Weinberg equilibrium. D. All of the choices are correct.
Scientists have discovered that when they provide supplemental food for hares, their density tripled. The figure above shows cycles of lynx and hare populations over a century's time. What do you predict would happen to the lynx and hare populations in an area where hares were provided supplemental food for one year?
A. The lynx population and the hare population would increase simultaneously, and stay at a stable high level permanently.
B. The hare population would increase, but the lynx population would be unaffected.
C. The lynx population would decrease as hares increased due to exploitative competition, then slowly rise back to the original level.
D. The lynx population would increase 1-2 years after the hares increased, then both would continue cycling down and up.
Prolactin, oxytocin, and estrogen exhibit which type of hormone interaction?
a. synergistic b. permissive c. opposing d. unrelating e. mutual