Biogeography is the study of the ____
a. distribution of land masses
b. patterns in the geographical distribution of species
c. patterns of species dispersal
d. patterns of population demographics
e. the biodiversity of plant and animal species
ANSWER: b
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Which of the following has emerged as one of the leading organisms responsible for death in AIDS patients?
A. Pneumocystis jiroveci B. Acanthamoeba C. Toxoplasma gondii D. Naegleria
___ seals a nick in a strand of DNA by creating a sugar phosphate bond between the adjacent, disjointed nucleotides.
A. DNAse B. DNA ligase C. Restriction endonuclease D. EcoRI E. A and C
Suppose that you have a splinter that is embedded so deep in your foot that you cannot remove it with tweezers. How could you use what you learned in this unit as a first-aid remedy in this situation?
A. Use active transport to your advantage to draw water into your foot. B. Use osmosis to your advantage by placing your foot in a hypotonic solution. C. Use osmosis to your advantage by placing your foot in a hypertonic solution. D. Use an artificial concentration gradient to draw water into your foot. E. Use osmosis to your advantage by placing your foot in an isotonic solution.
Managed care plans and _____ may require that the provider get authorization before a procedure is performed.
a) fee for service plans b) mediSoft c) preferred provider organizations (PPOs) d) dentisoft