Which of the following is not a function of the IgG antibodies?
a. Bind to pathogens
b. Attack invading bacteria through phagocytosis.
c. Activates compliments.
d. Neutralize toxins.
e. Protection of the fetus.
b
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Which of the following is NOT true about
cyanobacteria? a. Cyanobacteria have the same light-capturing chlorophylls as plants. b. Chloroplasts evolved from ancient cyanobacteria. c. Cyanobacteria can fix carbon. d. Cyanobacteria can fix nitrogen. e. Cyanobacteria put nearly all of the nitrogen into Earth’s atmosphere.
The epithelial lining of the small intestine is modified for what function?
A. protection B. absorption C. secretion D. removing debris E. excretion
Which mechanism causes postzygotic reproductive isolation?
A. habitat isolation B. mechanical isolation C. hybrid sterility D. temporal isolation
Manufacturers make vegetable oils solid or semisolid at room temperature by _____.
A. adding hydrogen atoms to the double bonds in the fatty acid hydrocarbon chains B. removing hydrogen atoms and forming additional double bonds in the fatty acid hydrocarbon chains C. removing hydrogen atoms and forming additional single bonds in the fatty acid hydrocarbon chains D. adding hydrogen atoms to the single bonds of the fatty acid hydrocarbon chains E. none of the above