When people think that two events are more likely to occur together than is either individual event, it's called the .

Mutually exclusive

Explanation:

Are those events that occur in relation and in close association to that of the other events and work together and are likely to occur than one individual event. Such as the rainfall and flooding.

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.