Three fatty acids bonded together with a glycerol are found in a(n):
A. enzyme.
B. chlorophyll pigment.
C. phospholipid.
D. triglyceride.
E. alcohol.
D
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A drop of blood entering the heart from the vena cava would pass through which of the following structures before moving through the pulmonary valve?
A. atrioventricular valve B. pulmonary artery C. pulmonary vein D. left atrium E. All of the answer options are correct.
Medically, what do persons with bulimia often require treatment for?
What will be an ideal response?
"Dolly" or another reproductively cloned animal is a clone of:
A) a human that contributed genes to the recombinant DNA in the animal. B) bacteria that were used to generate the recombinant DNA in the animal. C) an adult animal that contributed DNA to an enucleated egg. D) the animal that donated the egg from which the clone developed.
Which of the following hypothetical viruses would likely show a "cactus-shaped" population phylogeny?
a. a mutualistic virus that vertically transmitted b. a highly virulent virus like Ebola that kills its host before the build-up of any immunity c. a highly virulent virus that results in life-long immunity and that can only infect naïve individ-uals (e.g., young children) that have never encountered any of the virus's strains d. a virus that can out-evolve widespread immunity via escape mutants