Sharee had been ill for three days. When her mother took her to the doctor, the doctor decided not to prescribe an antibiotic. He said Sharee had a virus. Which claim explains why antibiotics are not able to cure viral infections? A. Antibiotics kill bacteria, not viruses.

B. Antibiotics target only white blood cells.

C. Antibiotics are not used to fight any infections.

D. Antibiotics cause fevers that make viruses stronger.

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48

Which describes the changes in the earths motion?

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit