Which of the following has the largest surface-to-volume ratio?

a. Escherichia coli
b. influenza virus
c. Roseobacter denitrificans
d. Staphylococcus aureus


Answer: B

Biology & Microbiology

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A population’s __________ is the average number of

children born to women during their reproductive years. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Some drugs and toxic compounds interfere with removal of neurotransmitters from the synaptic cleft once they have been released

(1) Explain the two basic mechanisms affected by Sarin nerve gas and the drug Prozac. (2) If you were investigating an autoimmune disease that appeared to interfere with removal of neurotransmitters from the synaptic cleft, and you were able to isolate the causative antibody from the patient's serum, how could you use that antibody to investigate whether it affected one of the two inactivation mechanisms? What will be an ideal response?

Biology & Microbiology

If a thioglycollate tube was pink throughout, which organisms used in this lab would grow in the tube?

A) All of the organisms used in this lab B) Pseudomonas aeruginosa and Staphylococcus aureus, but not Clostridium sporogenes C) Clostridium sporogenes and Pseudomonas aeruginosa, but not Staphylococcus aureus D) Staphylococcus aureus and Clostridium sporogenes, but not Pseudomonas aeruginosa

Biology & Microbiology

When a the results of an experiment support a hypothesis, the hypothesis can now be considered a theory.

Answer the following statement true (T) or false (F)

Biology & Microbiology