Which variable determines the pitch of sound?
a. Tone
b. Amplitude
c. Frequency
d. All of these choices
e. Loudness
c
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What do the final steps of fermentation regenerate?
a. glucose b. ADP c. NAD+ d. NADH e. electrons
Based on the illustration, if a person were to have a mutation in the RAF protein, and it was unable to bind GTP, what would happen to the pathway?
a. The pathway would stop at GRB2, and SOS would not activate RAS.
b. The pathway would stop at EGRF, and no ligand binding would occur.
c. The pathway would stop at RAF, and RAF would not phosphorylate MEK.
d. The pathway would continue unimpeded.
Bacteria that cause tooth decay can lead to ____
a. diarrhea b. constipation c. hepatitis d. gingivitis e. gastritis
Answer the following questions true (T) or false (F)
1. Microbial contamination always results in infection. 2. Influenza is an example of a chronic disease. 3. Biofilms provide an alternative means for bacteria to attach to surfaces within the body.