Cellular slime molds can be distinguished from
plasmodial slime molds on the basis of
a. reproductive structures.
b. spore formation.
c. number of nuclei per cell.
d. slime trails.
e. food requirement
C
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In which of the following excretory tubule segments in mammals does about 65 percent of the water
from the filtrate get reabsorbed?
a. distal convoluted tubule b. Bowman's capsule c. descending segment of the loop of Henle d. proximal convoluted tubule e. ascending segment of the loop of Henle
Sperm are formed directly from the maturation of
a. sperm mother cells. b. spermatids. c. spermatogonial cells. d. primary spermatocytes. e. secondary spermatocytes.
Which of the following directly pertain to inhibition of cellular protein synthesis by antimicrobial agents?
A) cellular cytoplasm is lost B) binding and inhibition of RNA polymerase C) imitation or molecular mimicry of normal molecules D) interferes with accurate translation of mRNA message
A typical AA battery has a potential of 1.5V. One can think of the potential in a neuron as having similarities to that of a battery.How does the resting potential of a typical neuron compare to that of a 1.5 V AA alkaline battery?
A. A typical neuron has a resting potential of -70V, or about 50 times the voltage of the battery. B. A typical neuron has a resting potential of -70mV, or about 5% the voltage of the battery. C. A typical neuron has a resting potential of +70V, or about 50 times the voltage of the battery. D. A typical neuron has a resting potential of +70mV, or about 5% the voltage of the battery.