Two important features that distinguish mammals from any other type of animal are:
a. four legs and hair.
b. placentas and hair.
c. hair and mammary glands.
d. scales and mammary glands.
e. placentas and mammary glands.
Ans: c. hair and mammary glands.
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A special class of ABC-type ATPases associated with tumors that allow movement of antibiotics and other drugs out of the cell are known as
A) multidrug resistance transport protein. B) import transporter proteins. C) cystic fibrosis transmembrane conductance regulator. D) human catalytic convertase. E) none of the above; no such transporter has been identified in eukaryotes.
Of those listed below, which category of classification is the most narrow?
A. Domain B. Family C. Class D. Genus
In which structure would you find oxygenated blood?
a. right atrium b. right ventricle c. pulmonary veins d. pulmonary arteries e. superior and inferior vena cava
The soil-forming process occurring in cool, moist climates of midlatitude regions where coniferous vegetation dominates is referred to as
A) laterization. B) podzolization. C) gleization. D) calcification.