The evidence that suggests that a whale is related to

sheep is due to which of the following skeletal
structures?
a. skull
b. ankle
c. pelvis
d. spinal column
e. none of these


Answer: b

Biology & Microbiology

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Considering solutions with the following pH, which is alkaline?

A. 8 B. 7 C. 6 D. 5 E. All are alkaline.

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What is the association between tropomyosin and troponin molecules in resting striated muscle fibers?  

A.  Tropomyosin holds the troponin in place on the myosin. B.  Troponin holds the tropomyosin in place on the myosin. C.  Tropomyosin holds the troponin in place on the actin. D.  Troponin holds the tropomyosin in place on the actin. E.  There is no known association.

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If infant mortality rates are declining, how can the overall population growth rate slow down?

A) decreased adult survival B) increased resource efficiency C) decreased reproductive output D) decreased demographic transition

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Understanding the risks in participating in a clinical trial and agreeing to participate is known as ________

A) the placebo effect B) the drug affect C) informed consent D) drug-drug interaction E) a double-blind study

Biology & Microbiology