marks dentist gives him a shot before performing a root canal. the dentist says the shot is anesthesia and that mark wont feel any pain. mark feels his gums going numb, while the rest of his body is working fine. what has the anesthesia actually doing

who knows

explanation:

every el niño cycle is different. every year.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

can i get the brainliest pls

explanation: