The female gametophyte is the
a. flower.
b. ovule.
c. embryo sac.
d. carpel.
e. ovary.
Answer: c
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Which of the following affects the size of the clear zone in a disk diffusion test of antimicrobial susceptibility?
A. The solubility of the drug B. The diffusion rate of the drug C. The initial concentration of the drug D. All of the choices are correct.
Even though plant cell walls in the root system are rigid they are permeable to ________. a. water and sunlight b. sunlight and potassium c. They are not permeable to anything
d. water and ions e. sunlight and oxygen
A high therapeutic index is advantageous. This refers to
A. high efficacy of the drug against the target microbe. B. selective toxicity and human toxicity are both high. C. the ratio between low selective toxicity and high human toxicity. D. the ratio between high selective toxicity and low human toxicity.
Match the organism to the supergroup it belongs.
Amoeba proteus A) Opisthokonta B) Amoebozoa C) Excavata D) Chromalveolata