Which continent did humans first appear

So far, the earliest finds of modern Homo sapiens skeletons come from Africa. They date to nearly 200,000 years ago on that continent. They appear in Southwest Asia around 100,000 years ago and elsewhere in the Old World by 60,000-40,000 years ago.

whose power in the senate is equal to the power of the speaker of the house?

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."