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
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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
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.
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.
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