Smallpox
A. has been eliminated as a naturally occurring infection in human beings.
B.
still occasionally occurs in third world countries.
C. probably only had a human reservoir.
D. was dealt with by vaccination.
E. has been eliminated as a naturally occurring infection in human beings, AND was dealt with by vaccination.
E
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Animal cells use exocytosis to secrete all of the following except
A) cell wall material. B) mucus. C) peptide hormones. D) milk proteins. E) digestive enzymes.
Relaxed muscles, such as those generated by prolonged sitting, ____, resulting in ____
a. do not make ATP; higher blood glucose levels b. make excess ATP; lower blood glucose levels c. do not make ATP; lower blood glucose levels d. make excess ATP; higher blood glucose levels e. make normal amounts of ATP; stable blood glucose levels
An important tool of genetic engineering is ________ DNA, which is DNA altered by the incorporation of genes from a different organism
Fill in the blank(s) with correct word
Why were blood transfusions prior to 1985 more likely to be associated with Hepatitis C transmission than blood transfusions done since 1985?
A. Since 1985, the incidence of Hepatitis C infection in the general population has been significantly lower than it was prior to 1985. B. Since 1985, donor blood has been tested for either nonA, nonB Hepatitis virus or specifically for Hepatitis C virus. C. Since 1985, donor blood is tested for the human immunodeficiency virus. D. Since 1985, the processing and storage of donor blood destroys any Hepatitis C virus in the blood.