Which one of the following human proteins, produced by transgenic bacteria, is used to prevent or break down blood clots?
A) insulin
B) tissue plasminogen activator
C) erythropoietin
D) growth hormone
E) factor VIII
B
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Which of the following is used in the production of buttermilk and cheese?
A. Enterococcus faecalis B. Streptococcus pneumoniae C. Lactococcus lactis D. Streptococcus mutans
Competition among plant species rarely involves only a single resource
Indicate whether the statement is true or false
Some restaurants serve seafood platters that contain oysters, mussels, and clams. Such platters therefore consist of ________
A) sponges B) cnidarians C) gastropods D) mollusks
To prevent the overgrowth of cyanobacteria and algae in water reservoirs, the water is often treated with
A. antibiotics. B. lactic acid. C. copper sulfate. D. propionic acid. E. iodine.