What does a completely columnar population pyramid represent?
A) proportionally more young than middle-aged or elderly people
B) equal proportions of young, middle-aged, and elderly people
C) proportionally more middle-aged and elderly than young people
D) proportionally more middle-aged than elderly and/or young people
B
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Data review process for AST profiles:
a. requires susceptibility testing results only. b. is the responsibility of a single individual in the laboratory. c. can be done on "as needed" basis, no less frequently than weekly. d. allows for troubleshooting of unusual pro-files and results to be held until resolved.
How does the spiral valve within the shark intestine increase the efficiency of food digestion?
What will be an ideal response?
Most plants appear green because:
a. Chlorophyll is a pigment that reflects green wavelengths of light b. Carotenoids are pigments that reflect green wavelengths of light c. Carotenoids are pigments that absorb green wavelengths of light d. Chlorophyll is a pigment that absorbs green wavelengths of light
The adaptations of species involve
a. form. b. function. c. behavior. d. life history patterns. e. all of these.