Although each of the following has a better chance of influencing gene frequencies in small populations than in large populations, which one most consistently requires a small population as a precondition for its occurrence?
A) mutation
B) nonrandom mating
C) genetic drift
D) natural selection
E) gene flow
Answer: C
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Feeding behavior with a high energy intake-to-expenditure ratio is called _____
A) herbivory B) autotrophy C) heterotrophy D) search scavenging E) optimal foraging
Which of the following statements about interferons is false?
A) Interferons are virus-specific. B) Interferons have been used to treat hepatitis C and certain types of cancer. C) Interferons produced by a virus-infected cell will not save that cell from destruction. D) Interferons produced by virus-infected rabbit cells cannot be used to treat viral diseases in humans.
The definition of (fermentation/cultivation/processing) used by food microbiologists is a desirable change in food due to microbial activity
What will be an ideal response?
All of the following are correct about Staphylococcus aureus except
A. it is the coagulase-positive species. B. the body's most powerful defense against it lies in the T-cell response. C. carriers may be treated with antibiotics to clear them of the bacteria. D. most strains are resistant to penicillin and ampicillin. E. it causes furuncles, carbuncles and abscesses.