Relative age is used to determine:

a. the age of an event in years
b. the sequential order of events, but not their age in years
c. the sequential order of events and their age in years
d. none of the above

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.