What is the major difference between a psychiatrist and a psychologist?
a. only psychiatrists attended medical school.
b. only psychologists treat clients with problems.
c. only psychiatrists can give medicine to clients.
d. both a and c

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.

Select the correct answer. what is the first thing you should look for on a food label? a. calories from fat b. calories c. serving size d. number of servings

When is it most common for humans begin to develop a sense of self worth? a. adolescence b. early childhood c. infancy d. late childhood