"Ringworm" is caused by
A) dermatophytes growing in the upper dead tissue layers of the skin.
B) dermatophytes that have invaded deep layers of the skin.
C) parasitic worms that infect the skin.
D) a hypersensitivity reaction caused by superficial contact with dermatophytes.
E) immunosuppression due to HIV infection.
A
Bloom's Taxonomy: Comprehension
Section: Mycoses of the Hair, Skin, and Nails
Learning Outcome: 19.41
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Which of the following is not necessary for a DNA polymerase reaction?
A. template DNA B. primer strand C. ATP D. dNTPs E. All of these components are necessary.
Answer the question using the accompanying figure. In the figure, letter B represents a ____ taxon, which includes
____.
a. monophyletic; an ancestral species and all of its descendants b. polyphyletic; species from different evolutionary lineages c. polyphyletic; an ancestral species and all of its descendants d. paraphyletic; species from different evolutionary lineages e. paraphyletic; an ancestral species and only some of its descendants
Homologous chromosomes undergo recombination during
a. prophase II. b. metaphase I. c. metaphase II. d. both prophase I and II. e. prophase I.
Why are roots essential for terrestrial plants?
A) They absorb carbon dioxide needed for photosynthesis. B) They allow plants to obtain sun energy. C) They absorb water and minerals needed for growth. D) None of the above; plants can function without roots.