He endocrine system works with the to coordinate and regulate the body. a. nervous system b. digestive system c. muscular system d. cardiovascular system

An obese man 5'5 and 200 pounds, seta a long-term goal to loose 50 pounds which of these is a resonable benchmark he might set for himself

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.

What is one way that cold and flu viruses spread? a.by transfusing contaminated blood b.by inhaling contaminated droplets c.by eating contaminated meat d.by drinking contaminated water