The largest organism ever to have existed in the world is (was) a
A. mammoth.
B. dinosaur.
C. sequoia tree.
D. whale.
E. fungus.
Answer: E
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Which of the following statements is not true of the value ?H?
A) ?H is the change in heat content. B) ?H is the change in enthalpy. C) In biology, ?H is basically the same as ?E. D) A reaction with a positive ?H value is exothermic. E) ?H = ?E + ?(PV)
For what 3 antimicrobials should all isolates of staphylococcus aureus be tested?
A. Vancomycin Oxacillin, Cefoxitin B. Furazolidone/ Vancomycin, Rifampin C. Bacitracin, Novobiocin, Oxacillin D. Vancomycin, Impenem, Isoniazid
Smoke from fossil fuels, motor vehicle exhaust, and nitrogen fertilizers can lead to
a. greater cloud formation. b. acid rain. c. basic rain. d. rain with high mineral content. e. salted rain.
Huntington's disease is caused by a single dominant allele. It is a lethal disease, yet it persists in the human population. Which of the following statements best describes why?
A. Huntington's disease is sex-linked and every human has at least one X chromosome; thus, the chances are extremely high for this allele to be maintained in the human population. B. While lethal to a parent, Huntington's disease will not be lethal to the offspring since it can skip a generation. C. Huntington's disease presents symptoms in mid-life, after most people have already had offspring. D. Huntington's disease can present symptoms so mild that they appear to lack dominant expression of the allele in some individuals; in those cases, the allele is passed on to the offspring. E. Even though Huntington's disease is lethal, it improves chances for reproduction before the person dies.