Before clotting factors from recombinant DNA became available, less than half of hemophiliacs in the
U.S. acquired HIV from injection of clotting factors obtained from blood samples. Indicate whether the statement is true or false.
F
Biology & Microbiology
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_____, such as sea squirts, share features of the chordate body plan during early development
A. Tunicates B. Echinoderms C. Chordates D. Cephalochordates
Biology & Microbiology
In humans, which receptor is used primarily to detect sharp blows and excessive heat?
A. mechanoreceptor B. chemoreceptor C. proprioceptor D. thermoreceptor E. pain receptor
Biology & Microbiology
Which hormone allows muscle cells to store glucose?
a. growth hormone b. estrogen c. insulin d. glucagon e. testosterone
Biology & Microbiology
How many types of amino acids human body needed to build proteins?
a. 11 b. 20 c. 2 d. 46
Biology & Microbiology