Which trimester is an expecting mother most at risk for miscarriage?

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

Which of the following accounts for someone who has had regular herpesvirus-mediated cold sore or genital sore flare-ups? a) re-infection by a closely related herpesvirus of a different strainb) re-infection by the same herpesvirus strainc) copies of the herpesvirus genome permanently maintained in host nucleid) copies of the herpesvirus genome permanently maintained in host cell cytoplasm

How do i know when i have a stress headache? what are the symptoms?