Once milk has gone through the process of pasteurization it is considered sterile.
A) True
B) False
A) True
Feedback: During pasteurization, heat kills many bacterial species resulting in a product that, while not sterile, has a reduced microbial load.
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The yellow zone in the tropical middle intertidal owes its color to:
a. sponges. b. boring algae. c. barnacles. d. limpets. e. crabs.
There is a controversy over pre-teen girls receiving the HPV vaccine. Many parents think that giving this vaccine condones sexual activity at a young age. On the other hand, there are parents who do not want their kids to pick up STIs. Why is the vaccine recommended for 11-12 year old girls? Why not give the vaccine to young adult women who are just becoming sexually active?
A. Very young women tend to get cancer from HPV, whereas women who are older get warts from HPV. B. The immune system is strongest in pre-teen girls, so it is best to give the vaccine very early in life. C. Once the young woman becomes infected with HPV, the virus gets into cells. It is then too late to vaccinate. D. The vaccine is cheaper for young girls since the dosage of virus in the vaccine is far less than that given for older women.
An action potential results from the
a. opening of voltage-gated channels. b. closing of voltage-gated channels. c. ionization of voltage-gated channels. d. opening and closing of voltage-gated channels. e. opening and ionization of voltage-gated channels
Which of the following is not considered a mode of action by antimicrobial agents?
A) Inhibition of protein synthesis. B) Inhibition of cell wall synthesis. C) Inhibition of membrane permeability. D) Disruption of selective toxicity.