Photo credit: Windi Wojdak, RVT. The Issues: Concepts Relating to Surgery Training and Animal Welfare. 1. Harming and killing animals in veterinary education directly contradicts the commitment to. âFirst, do no harm.â. Students are drawn to the veterinary profession because of their commitment to help.
Viruses function by reproducing. However, in the real sense they do not really reproduce, but multiply. The virus structure is made in a way that allows it to replicate itself, thus creating numerous viruses. This is the reason why many will refer to the process as reproduction.here are two main ways that viruses reproduce or multiply and these are listed below. 1  Lytic Cycle: With the lytic cycle, the virus attaches itself to a host cell and infuses the cell with its nucleic acid.
When infected by a virus, a host cell is forced to produce many thousands of identical copies of the original virus, at an extraordinary rate. Unlike most living things, viruses do not have cells that divide; new viruses are assembled in the infected host cell.But unlike still simpler infectious agents, viruses contain genes, which gives them the ability to mutate and evolve. Over 5,000 species of viruses have been discovered.iruses spread in many ways. Just as many viruses are very specific as to which host species or tissue they attack, each species of virus relies on a particular method for propagation. Plant viruses are often spread from plant to plant by insects and other organisms, known as vectors.