The term that describes large-scale patterns and rates of change among groups of species is ____
a. microevolution
b. macroevolution
c. gene pool
d. genetic drift
e. group divergence
ANSWER: b
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A fish in which a sharp spine is associated with the dorsal fins is the:
a. spiny dogfish. b. sea bass. c. hagfish. d. sea horse. e. goldfish.
Based on figure 16.15, which of the following best explains why toxic shock syndrome peaked in the early 1980s?
a. Some strains of S. aureus developed resistance to methicillin. b. The drug methicillin was invented in the 1980s c. A single strain of S. aureus was responsible for the toxic shock syndrome, and women could not develop immunity to this strain d. Some strains of S. aureus were able to adapt to the new environment produced by ultra-high-absorbency tampons
Which of the following is NOT found in the epidermis?
a. stratified epithelium b. blood vessels c. tight cell junctions d. keratin e. melanin
Cilia and flagella are most directly involved in:
a. metabolism. b. movement. c. maintaining homeostasis. d. muscle contraction. e. cell signaling