Which of the following is a steroid hormone?
A) adrenaline
B) melatonin
C) glucagon
D) T4 from the thyroid
E) estrogen
Answer: E
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Some fungi are called rusts because:
A. they give a reddish cast to soils in which they grow B. they have reddish spores that emerge from the leaves of infected plants C. the enzymes they produce for breaking down wood also causes iron to rust D. they produce rust-colored mushrooms as fruiting bodies E. none of the other choices provided
The energy to form the new bonds between nucleotides in a growing DNA strand is provided primarily by ____
a. unwinding of the DNA double helix b. hydrolysis of pyrophosphate c. breaking hydrogen bonds between base pairs d. DNA helicase e. forming hydrogen bonds between base pairs
Which of the following is not a function of the root of a plant?
A. Anchor the plant. B. Produce energy that the plant can use to carry out metabolism. C. Absorb water. D. Absorb mineral nutrients for the plant. E. Form beneficial relationships with microorganisms, thereby increasing the plant's ability to obtain nutrients.
Cutaneous mycoses usually
A) are superficial infections on the skin, hair, or nails. B) occur in the deeper dermal layers or in muscles. C) are not associated with changes in the normal microbiota. D) respond quickly to treatment with a single dose of topical antifungal medication. E) are invasive with a considerable risk of fatality.