I would believe the correct responses would be option 1,2,4.
The answer is B, it bonds the DNA strand because it binds to the DNA strand during transcription to then separates the DNA strand afterward.
The answer is <span> an endothermic reaction. </span>Photosynthesis is a type of endothermic reaction because it needs the energy from light (sun) to convert water and carbon dioxide into oxygen and glucose needed by other organisms.
Viruses go around in the air and bacteria you have to touch