The effects of a drug depend on all of the following, EXCEPT the properties of the drug.

the physical characteristics of the user.

the cost of the drug.

psychological factors

Explain why you would or would not have a lasik surgery if you wore contacts or glasses.describe how public opinions related to this surgery have changed over the years.in your own words, explain this surgery as though you are explaining it to someone who has no knowledge of the procedure.

In the category column, classify the following activities as either health promotion or health protection. if any of these actions fall under both the categories, write both. in the reason column, write down your reason for making each classification.

In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation, "swine flu." although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. what is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses? a) the virus was descended from a common ancestor of bird, pig, and human flu viruses.b) the infected individuals happened to be infected with all three virus types.c) related viruses can undergo genetic recombination if the rna genomes mix and match during viral assembly.d) the human was likely infected with various bacterial strains that contained all three rna viruses.