Characters that exist in two or more discrete states are described as exhibiting ____
a. quantitative variation
b. qualitative variation
c. genetic equilibrium
d. punctuated equilibrium
e. disruptive selection
ANSWER: b
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When communities of organisms interact with their physical environment they form a(n)
A. population. B. organism. C. community. D. ecosystem. E. macromolecular community.
Sexual reproduction has many benefits from a genetic standpoint. Can you think of any downside to sexual
reproduction? What will be an ideal response?
Which fungal phylum includes members that are also called club fungi?
a. Chytridiomycota b. Basidiomycota c. Glomeromycota d. Zygomycota
Which of the following does NOT affect the rate of diffusion?
a) solvent density b) temperature c) mass of the molecule diffusing d) extent of the concentration gradient e) all of these affect the rate of diffusion