13. which one of the following diseases is caused by a virus?
a. tuberculosis
b. tetanus
c. hepatitis b
d. strep throat

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

The instructions for making proteins come originally from

The first amino acid of a new polypeptide chain is