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
The bony movable ?ap that covers the gills and gill slits is called the
a. operculum. b. cranium. c. tympanum. d. colon.
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