The cell walls of fungi and algae are rigid and provide structural support and shape, and are similar to prokaryotic cell walls in chemical composition.

a. true
b. false


Ans: b. false

Biology & Microbiology

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A newly described fungal species has been isolated from the rumen of sheep.  It is microscopic, unicellular, and produces spores that have a flagellum.   This species will most likely be classified as a/an ________.

A. Chytridomycete B. Glomerulomycete C. Ascomycete D. Microsporidia E. Basidiomycete

Biology & Microbiology

People who cannot become infected with HIV have

A) extra T cells. B) deletions in the genes encoding the CCR5 coreceptors. C) a gene encoding a protein that attacks the virus. D) anti-HIV antigens.

Biology & Microbiology

The continental crust is primarily comprised of all the following except:

a. granite-type rock. b. basalt-type rock. c. quarts-type rock. d. silicon-type rock. e. sedimentary rock.

Biology & Microbiology

Flowing-water aquatic systems (streams and rivers) contain high levels of organic matter so are rarely dependent on inputs from terrestrial systems

Indicate whether the statement is true or false

Biology & Microbiology