Is there dna in your food? how do you know? why are you not harmed by ingesting the dna of another organism?

Food is made up of cells. those cells contain theyre own DNA without it they wouldnt exist. and when we consume it from other organisms it dies and breaks down and doesnt enter the blood stream 

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.