Mycoplasmas lack a cell wall. Their cell membrane is stabilized by ____________ and is resistant to lysis.
A) testosterone
B) sterols
C) teichoic acid
D) porin
Ans: B) sterols
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You ignore the garden the second summer. The sunflowers thrive but they are surrounded by grassy weeds. It is likely that the weeds are ___________ plant species
A. r-selected B. K-selected C. keystone D. All of the responses are correct. E. None of the responses is correct.
How do members of Archaea differ from the Bacteria?
What will be an ideal response?
Bergey's Manual of Systematic Bacteriology contains
A) classification schemes for prokaryotes. B) treatments for bacterial diseases. C) a complete list of all bacterial species. D) genetic sequences of all known prokaryotes. E) rules for naming new bacterial species.
If a plant heterozygous for the genes for both seed color and shape is self-fertilized, the ratio of offspring with smooth, green seeds is ________/16. (Yellow and smooth are the dominant phenotypes.)
Fill in the blank(s) with correct word