Which fungus commonly causes cutaneous ulcers and can cause extensive abscess formation and tissue destruction?

a) Pneumocystis jirovecii
b) Histoplasma capsulatum
c) Coccidioides immitis
d) Blastomyces dermatitidis


Ans: d) Blastomyces dermatitidis

Biology & Microbiology

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Stramenopiles include all of the following EXCEPT

a. Rhodophyta. b. Chrysophyta. c. Phaeophyta. d. Bacillariophyta. e. Oomycota.

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Tetanus results from a state of maximum muscle relaxation, which is necessary to allow the muscle to rest before the next contraction

Indicate whether the statement is true or false

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Which of the following must exist in a population before natural selection can act upon that population?

A) genetic variation among individuals B) variation among individuals caused by environmental factors C) sexual reproduction D) the population has predators

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Which of the following statements is the MOST accurate comparison of human, bacterial, and fungal cells?

A. Human and fungal cells have similar ribosomes, whereas bacterial ribosomes are different B. Human and bacterial cells have plasmids, whereas fungal cells do not-FALSE C. Human and fungal cells have a similar cell wall, in contrast to bacteria, whose cell wall contains peptidoglycan-[Humans don't have cell walls. FALSE] D. Human cells undergo mitosis, whereas neither bacteria nor fungi do (fungi do)

Biology & Microbiology