Which of the folllowing describes Proteobacteria in domain Bacteria?

A. phylum
B. class
C. species
D. genus


Ans: A. phylum

Biology & Microbiology

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Plants can have ___________ defenses, which are always active, or _________ defenses, which are produced only when a plant is threatened

A. inducible; constitutive B. constitutive; inducible C. chemical; mechanical D. mutualistic; symbiotic

Biology & Microbiology

Photoperiodic plants react to a certain amount of darkness, referred to as ________ (three words)

Fill in the blank(s) with correct word

Biology & Microbiology

An organism is found to be almost unchanged from its 200 million year old fossil. This is an example of ____.

A. stasis B. coevolution C. mass extinction D. adaptive radiation E. idealized design

Biology & Microbiology

The bony movable ?ap that covers the gills and gill slits is called the

a. operculum. b. cranium. c. tympanum. d. colon.

Biology & Microbiology