Twitching motility involves ________.
A. type IV pili
B. peritrichous flagella
C. monotrichous flagella
D. periplasmic flagella
Answer: A
Biology & Microbiology
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Tracheids differ from vessels in that _________
A. they lack end-walls B. they lack pits C. they are formed from a single cell D. water enters and exits through pits
Biology & Microbiology
Is it possible to be a "carrier" (phenotypically normal but capable of passing the allele to one's offspring) for a sickle-cell anemia?
a. yes b. no
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Chemotrophy makes ATP and stores energy in Ion Gradients: ETS
What will be an ideal response?
Biology & Microbiology
Compound eyes are composed of independent visual units called
A. ocelli. B. ommatidia. C. retinas. D. apposition segments. E. simple eyes.
Biology & Microbiology