_______ describes a chromosome that has a centrally-placed centromere. Fill in the blank(s) with the appropriate word(s)
ANS: Metacentric
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Blood vessels and tiny air sacs within lungs are lined by ________ epithelium
a. simple columnar b. all of the choices c. simple cuboidal d. simple squamous
In which demographic model is population growth the fastest?
a. preindustrial b. transitional c. industrial d. postindustrial e. agricultural
The iron-sulfur world hypothesis suggests that organic molecules formed near:a
volcanoes. b. sulfur pools. c. pools of water. d. hydrothermal vents. e. low atmosphere clouds.
Which of the following statements is true of purulent exudate?
a. It is present in all inflammatory lesions. b. It contains clear, serum-like fluid with small amounts of protein. c. It contains neutrophils, pus, and bacteria. d. It contains fibrinogen and lots of fluid.