Parasitic helminths have a highly developed ________ system to enhance host transmission.
A. nervous
B. reproductive
C. respiratory
D. digestive
E. muscular
Answer: B
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While conducting an experiment, you realize that a competitive inhibitor was interfering with your reaction. How could you overcome this problem?
A. Add a non-competitive inhibitor to the reaction. B. Add a cofactor to the reaction. C. Increase the concentration of the correct substrate in the reaction. D. Add an allosteric activator to the reaction.
If populations within the same area split into species, the process is known as
A. sympatric speciation. B. allopatric speciation. C. racial speciation. D. ecotypical speciation. E. reproductive speciation.
At the end of glycolysis, the original carbons of the glucose molecule form
A) two molecules of citric acid. B) two molecules of pyruvate. C) six molecules of carbon dioxide. D) two molecules of fructose. E) two molecules of NADH.
Myocardial infarction, also called a heart attack,
A) is caused by excessive blood pressure in the heart. B) actually causes no permanent damage to the heart. C) is unrelated to cigarette smoking. D) is the damage or death of cardiac muscle tissue.