The administration of the drug diclofenac to livestock inadvertently poisoned ____ and led to an increase in ____
cases.
a. cattle; hoof and mouth
b. vultures; rabies
c. children; epilepsy
d. coyotes; hemolytic E. coli
e. cattle egrets; avian flu
ANSWER: b
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If you went back to the field site and either removed or added predators to the natural ponds do you think that the results of your field experiments would mirror the results you obtained in the laboratory? Why or why not? a. The field experiment
results and lab experiment results would be identical. b. The field experiment results would show higher spot numbers than the labexperiment results. c. The genetic variability in the ponds is limited to low spot numbers, so althoughthere might be high spot numbers after the experiment, they would not be as highas in the lab results.
Some members of an animal society may have greater success at reproduction as a result of:
a. dominance hierarchy. b. sexual selection. c. reproductive isolating mechanisms. d. reproductive isolating mechanisms along with sexual selection. e. dominance hierarchy along with sexual selection and reproductive isolating mechanisms.
The digestive enzyme pepsin works in the acidic environment of the stomach to hydrolyze peptide bonds. As a result, pepsin affects which macromolecule?
A. protein B. lipid C. carbohydrate D. DNA
STORCHÂ is an acronym that represents the most common
A. vectors. B. genera of resident flora. C. infections of the fetus and neonate. D. portals of entry. E. sexually-transmitted diseases.