I just wan to say good bye to everyone here. today is the last day you will here from me. I am so tired of people saying to me that who cares about me or not. I have to here it everyday from my own parents but I wont here it no more sorry but I cant take it no more. pray for my family due to them recently fixing to lose there 17 year old son good bye y'all have a merry Christmas.

Fitness evaluations are usually design for certain group of people

When a patient becomes angry or embarrassed that they are being asked for payment, what you do to lessen the negative reaction?

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.