The element nitrogen has the atomic number 7 and an atomic mass of 14. how many neutrons does an atom of nitrogen contain?

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

What do nitrifying bacteria convert

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.