The binding of neurotransmitter to receptors on the muscle cell causes:
A. an influx of sodium ions.
B. an influx of potassium ions.
C. an efflux of sodium ions.
D. an efflux of potassium ions.
A
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Cigarette smoking increases the need for Vitamin C and the requirement for vitamin C for smokers is 35 mg above the DRI. Although smoking is certainly not indicated during pregnancy, if Moyra Doyle were a smoker, what would her DRI for Vitamin C be?
a. 85 mg b. 100 mg c. 120 mg d. 110 mg
In a Punnett square diagram, the outside of the box represents the _________
A. Diploid offspring B. Haploid offspring C. Diploid gametes D. Haploid gametes
Are the results for Suspects 1 and 2 identical?
a. yes b. no
Four of the five choices listed below contain DNA
Select the exception. a. Thermus aquaticus b. nanobes c. glaucophytes d. lipid spheres e. cyanobacteria