1. Explain the difference between intentional injuries and unintentional injuries and give examples of each. 2. Explain the term "injury prevention" and give examples of ways to prevent at least three specific injuries.

3. Define "healthy risk-taking behavior" and "unhealthy risk-taking behavior." Pick one type of unhealthy risk-taking behavior and describe how that behavior might contribute to specific injuries.

4. List five different types of violence and define each type.

5. Describe the effects of bullying on both the bully and the victim of bullying.

6. Select one strategy for preventing or reducing violent behavior or one emergency life-saving procedure and list the steps for the strategy or procedure.

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.