Anna is 28 years old. she and her husband plan to start a family soon. because anna is overweight and knows she will put on more weight during her pregnancy, she begins a low carbohydrate diet to slim down before she gets pregnant. she eliminates breads, grains, legumes, starchy vegetables, and fruit from her diet. what vital nutrients important early in pregnancy would be lacking in this diet? what could anna add to her diet to increase her intake of the nutrient(s)? will taking a prenatal vitamin supplement prescribed after her first prenatal visit be good enough?

Ricky is interested in the health and safety or animals and humans. she wants to pursue a career that allows her to monitor diseases in both animals and human populations. which career should ricky pursue?

Me with this i need to get the answer quickly.

Viruses use the host's machinery to make copies of themselves. however, some human viruses require a type of replication that humans do not normally have. for example, humans normally do not have the ability to convert rna into dna. how can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires? a) the virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles. b) the viral genome codes for specialized enzymes not in the host. c) the virus infects only those cells and species that can perform all the replication roles necessary. d) viruses can stay in a quiescent state until the host cell evolves this ability.