The answer is choice C 50%
Below are the choices, the answer is no. 3:
1) The virus was descended from a common ancestor of bird, pig, and human flu viruses.
2) The infected individuals happened to be infected with all three virus types.
3)Related viruses can undergo genetic recombination if the RNA genomes mix andmatch during viral assembly.
4)The human was likely infected with various bacterial strains that contained all three<span>RNA viruses.</span>
F - information based on opinion is not valid because it has not been proven right
The answer is carbohydrate
Answer:
Freon
Explanation:
<em>Freon is a trademark name for halocarbon (specifically, fluorocabon) products that once served (and still serve in some cases) as refrigerants. They are no longer utilized as refrigerants due to their negative effects on the environment and the ecosystem in general.</em>
<em>In addition to being used as refrigerants, freons are also used as aerosol propellants in cosmetics and household sprays.</em>
