In the flower diagram shown above, the item labeled "3" is a(n)
a. anther.
b. receptacle.
c. style.
d. stigma.
e. filament.
E
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In bone, crystals of calcium phosphate impregnate the extracellular matrix containing fibers of
A. troponin. B. myosin. C. actin. D. chitin. E. collagen.
Which one of the following is mismatched?
a. ground tissue?photosynthesis b. vascular tissue?storage c. dermal tissue?covering of plant body d. ground tissue?storage e. vascular tissue?transport
Neurogenetics is ________
A) the study of the protein basis for neurodegenerative disease B) the study of the genetic basis for neurodegenerative disease C) the study of genes associated with the formation of neurons D) the study of genetics that makes human brains unique
Peptidoglycan is cross-linked between what constituents in gram-negative bacteria?
a. N-acetylglucosamine residues b. N-acetylmuramic acid residues c. phosphate groups d. DAP and D-alanine amino acids