Many scientists believe that the land bridge theory explains where the earliest Americans found boat-building material. why the Ice Age delayed migration to South America. how people first migrated to North America. why North America experienced an Ice Age.

i dont know but i need points

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse