Why is it important to learn about rabies when only a few cases occur in the United States each year?
A. The US isn't the entire world. Rabies might be more common in other areas, and it's important to understand due to its lethality.
B. The only reason why rabies isn't common in the US is due to our lack of interaction with animal carriers. We could very easily have an outbreak on our hands if we don't know the warning signs to watch for that we've learned about by studying the virus and disease.
C. Rabies can never be completely eliminated-it has too many different animal reservoirs/carriers. As such, we need to remain constantly aware of how to protect human populations, both by preventing and treating the illness. We can only do that by learning about it.
D. All of the above are correct.
D
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Steroid hormones bind to receptors inside the cell and alter their conformation. The hormone-receptor complex is then transported into the nucleus, where it can directly affect gene expression. To get from the location where the receptor binds the hormone to its site of action, the hormone-receptor complex must _____.
A) undergo another conformational change B) become water soluble by binding to a carrier molecule C) be transported through the nuclear pore complex D) enter the smooth endoplasmic reticulum
Two similar species with different habitat preferences are isolated by ____ isolation.
A. reproductive B. ecological C. behavioral D. seasonal
Bacterial sexual processes are not so regular. However, they serve the same aim: to mix the genes from two different organisms together. All of the following are sexual processes EXCEPT:
A. Mutation B. Transformation C. Conjugation D. Transduction
Which step involves the release of carbon dioxide?
a. The third and fourth steps b. The second step c. The seventh step d. The first and eighth steps