Which of the following is officially accepted as a sterilant and high-level disinfectant?
A. silver nitrate
B. benzalkonium chloride
C. cresol
D. triclosan
E. glutaraldehyde
Answer: E
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The type of plant hormone primarily responsible for inhibiting leaf abscission is/are ____
a. gibberellins b. ethylene c. jasmonates d. abscisic acid e. auxins
Drugs that target the plasma membrane are able to do so because
A. they contain a lipid part that enables them to act as a detergent. B. they are able to denature the membrane-associated proteins, creating pores thereby disrupting the integrity. C. they act as enzymes to break down the phospholipids. D. they target the phosphate group on the phospholipids, breaking down the bilayer.
A florist assembles a bouquet of flowers from the following:
1. lilies, which have long leaves with parallel veins 2. Queen Anne's lace, also known as wild carrot because of its large taproot 3. buttercups, with their five lovely yellow petals 4. new shoots of daisies with two small cotyledons This bunch of flowers contains A) one eudicot and three monocots. B) two eudicots and two monocots. C) three eudicots and one monocot. D) all eudicots and no monocots.
Which of the following is the only animal able to be infected with HIV but can no longer be used for research due to ethical reasons and cost?
A. Asian macaque monkeys B. Chimpanzees C. Guinea pigs