The diaphragm is responsible for what?
a. pushing on the lungs during exhalation
b. pulling on the lungs to inflate them
c. creating negative pressure around the lungs
d. creating positive pressure around the lungs
c. creating negative pressure around the lungs
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Activation of which of the following is associated with the formation of focal adhesions and stress fibers?
A) Rho B) Ras C) Cdk-42 D) intermediate filaments E) ?-tubulin
In Gram-stained preparations, M. atlantae will appear as:
a. either gram-negative coccobacilli or short, broad rods that tend to resist decoloriza-tion and may appear gram-variable. b. gram-negative cocci in pairs or short chains. c. coccobacilli or medium-sized rods. d. coccobacilli that may appear in chains.
Tumor suppressors are ________
a. mutant checkpoint genes b. checkpoint genes for proteins that stimulate mitosis c. mutant oncogenes d. checkpoint genes for proteins that inhibit mitosis
Photosynthesis occurs mainly in the leaf's:
a. subsidiary cells. b. bundle sheath extensions. c. palisade mesophyll. d. trichomes. e. vascular bundles