Which two molecules are used to make cell membranes?
a) carbohydrates and glycogen
b) polysaccharides and nucleic acids
c) phospholipids and starch
d) phospholipids and proteins
e) nucleic acids and lipids
Ans: d) phospholipids and proteins
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A microorganism that has an optimum growth temperature of 37°C, but can survive short exposure to high temperatures is called a(n) ________.
A. thermophile B. thermoduric microbe C. facultative psychrophile D. extremophile E. psychrophile
Bacteria use restriction enzymes to
a. integrate viral DNA. b. destroy viral DNA. c. prevent mutation of their DNA. d. copy their genes. e. inhibit the expression of some of their genes.
Eudicot embryos transfer nutrients from endosperm to their two __________. Fill in the blank(s) with the appropriate word(s)
Thrombocytopenia is.
A) an increase in white blood cells. B) a decrease in red blood cells. C) a decrease in platelets. D) an increase in platelets.