Inrushing sodium ions trigger the opening of nearby channels and movement of sodium inward at that neighboring section of the membrane. What is occurring?
A) normal resting potential B) neurotransmitter release
C) protein movement D) an action potential
Answer: D
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To isolate anaerobic gram-positive organisms, which of the following media should be used?
a. Anaerobic blood agar b. Cycloserine cefoxitin fructose agar (CCFA) c. Laked kanamycin-vancomycin (LKV) blood agar d. Anaerobic phenylethyl alcohol agar (PEA)
The smooth endoplasmic reticulum functions in synthesis of
A) lipids. B) polysaccharides. C) proteins. D) DNA. E) lipids, polysaccharides, proteins, and DNA.
What are heterochromatin and euchromatin?
What will be an ideal response?
Small, generation-by-generation changes to a population' s gene pool is
A. Uniformitarianism B. Macroevolution C. Microevolution D. Natural selection E. Artificial selection