A sudden reduction in population size generally results in
a. extinction.
b. mutation.
c. speciation.
d. genetic drift.
e. natural selection.
D
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A) Neisseria gonorrhoeae B) Herpes Simplex Virus C) Trichomonas vaginalis D) Trepnema pallidum E) Helicobacter pylori
Which of these associations is incorrect?
Select one: a. epidermal cell--protection b. stomata--gas exchange c. sclerenchyma cells--cell division d. sieve-tube members--sugar transport e. xylem cells--water transport
In eukaryotic cells, transcription and replication occur during of the cell cycle.
A. telophase B. interphase C. prophase D. anaphase E. metaphase
What is the function of a fish's operculum?
A) Detects biofields in the immediate vicinity B) Detects movements in the surrounding water C) Protects the gills D) Provides buoyancy