As Joe walks to his car late at night, he hears footsteps behind him. Feeling afraid, Joe grips his keys and quickens his pace. It is likely that Joe's _____ has been activated

Which of the following is a common complication of diabetes?

A) Brain tumors B) HIV C) High blood pressure D) Blindness

__________ measure(s) the extent to which individual differences in complex traits in a specific population are due to genetic factors

A) Correlation coefficients B) Heritability estimates C) Epigenesis D) Niche-picking