List seven categories epidemiologists often use in their research

Which of the following is an argument against buying local fruits and vegetables?

In many ways, the regulation of the genes of a particular group of viruses will be similar to the regulation of the host genes. therefore, which of the following would you expect of the genes of a bacteriophage? a) regulation via acetylation of histonesb) positive control mechanisms rather than negativec) control of more than one gene in an operond) reliance on transcription activators

What should i do if i have a staring problem? i know this is not school related but just answer it