What method does a human white blood cell employ to engulf a bacterial cell?
a. osmosis
b. exocytosis
c. pinocytosis
d. phagocytosis
e. facilitated diffusion
d
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Synaptic integration is most accurately described as
A. the summing of multiple excitatory or inhibitory influences in a postsynaptic neuron. B. the fusing of presynaptic and postsynaptic membranes. C. the binding of Ca2+ ions to secretory vesicles in presynaptic neurons. D. the binding of secretory vesicles to the presynaptic neuron membrane. E. the enzymatic degradation of neurotransmitters in the synaptic cleft.
Which of the following is not an impact of acid
rain? a. It stops fish egg development b. It can burn foliage. c. It releases toxins in the soil. d. It causes eutrophication e. It can kill adult aquatic organisms
It is currently illegal to offer genome sequencing and analysis services to the public without being
specifically licensed to do so. Indicate whether the statement is true or false.
Which mechanism maintains the biological ability of populations to interbreed and can thus prevent evolutionary divergence of populations?
What will be an ideal response?