By pairing the ringing of the bell with the presentation of meat, pavlov trained dogs to salivate to the sound of a bell even when no meat was presented. in this experiment, the presentation of the meat was the

It's the stimulus because that's what triggers the salivation which is the reaction

The answer is a: the eggs have half as many chromosomes as the body cells

U. life is what you go through to become a better person. it makes you stronger, wiser, and more creative. it can be hard but its ok. because i believe everyone was put here for a reason. whether or not you know that reason you should always look towards the future and trust in god for a better tomorrow.be safe and blessed