As the average age of the population increases, the incidence of Alzheimer’s disease is also expected to increase
a. True
b. False
True
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If all functional groups are removed from an organic molecule, leaving only a hydrocarbon chain, the molecule becomes a:
A. Lipid B. Carbohydrate C. Protein D. Nucleic acid
People with a large amount of a certain type of connective tissue are least likely to be sensitive to cold. Which type of
tissue is this? a. cartilage b. adipose c. blood d. dense connective e. loose connective
Over 90% of Staphylococcus aureus bacteria can withstand the effect of penicillin. Why?
A. They produce Beta-lactamase. B. Cell division occurs in successively different planes, and the daughter cells remain attached to one another. C. They produce coagulase. D. They have loosely organized polysaccharide slime layers. E. They produce staphylokinase, which dissolves fibrin threads in blood clots
Due to reproductive isolation, a new species of weaver bird is evolving. Is it likely to use a social or solitary nesting strategy?
A. It depends on how many similar species it is competing with. B. It depends on whether it lives in the forest or the open savanna. C. It depends on whether it lives in near water or near the desert. D. It depends on how many eggs it lays.