Cells use ________ to transfer DNA from one cell to another via conjugation.
A) fimbriae.
B) pili.
C) hami
D) glycopeptides.
Answer: B) pili.
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Which of the following is TRUE of a chemical reaction?
A. It requires no energy. B. It rarely occurs with a catalyst present. C. It changes a substance from one form to another. D. It is limited to only a few types of organisms. E. They are usually irreversible.
The highest rates of reproduction would be expected in which of the following countries?
a. United States b. Germany c. Nigeria d. Argentina e. Russia
People who undergo radiation therapy sometimes develop anemia resulting from a decreased
production of red blood cells. This is because the radiation is: a. having an affect on the spongy bone. b. having an affect on the osteoblasts. c. having an affect on the metaphysis. d. having an affect on the melanocytes. e. having an affect on the keratinocytes
The baby is delivered during the third stage of labor. Indicate whether the statement is true or false