Cholesterol serves several essential functions in mammalian cells. Which of the following is not influenced by cholesterol?
(a) membrane permeability
(b) membrane fluidity
(c) membrane rigidity
(d) membrane thickness
(d)
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Scorpions have a prosoma, pedipalps that are modified into claws, and chelicerae. Which taxonomic group are they a member of?
A. Chelicerata B. Hexapoda C. Crustacea D. Myriapoda
Research indicates that compared to the genomes of bony fish, the elephant shark genome contains ____ the genes
necessary for bone formation.
a. none of b. half of c. most of d. all but one of e. double
Which of the following would increase the production of highly diluted urine?
a. decreased secretion of aldosterone b. increased salt in the diet c. decreased blood pressure d. increased secretion of antidiuretic hormone e. increased sweat production
Athlete's foot, vaginal yeast infections, and ringworm are caused by
A. bacteria. B. viruses. C. protozoa. D. fungi.