An epitope associates with which part of an antibody?

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home. what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided