Which of the following is an example of a polysaccharide?
A) glucose
B) starch
C) maltose
D) sucrose
B
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The K-T boundary is a layer present in strata worldwide that marks the boundary between the ________ periods, when ________
a. Proterozoic-Cambrian / oxygen accumulated in the atmosphere b. Cretaceous-Tertiary / an asteroid impact caused the extinction of the dinosaurs c. Triassic-Jurassic / dinosaurs appeared d. Devonian-Carboniferous / land tetrapods appeared
The anatomical structure shown above is of
a. venous valves. b. pulmonary veins. c. the inferior valve. d. the right myocardial sac. e. the heart apex
Which of the following molecules can be used as a substrate for cellular respiration?
a. glucose only b. glucose and lipids only c. glucose and proteins only d. glucose, lipids, and proteins only e. glucose, lipids, proteins, and fatty acids
Purified protein from Bordetella pertussis is used in a(n)
A) conjugated vaccine. B) subunit vaccine. C) nucleic acid vaccine. D) attenuated whole-agent vaccine. E) toxoid vaccine.