What does it mean to say that evolution is a scientific theory? Select one: a. The idea of evolution has lots of evidence supporting it. b. The idea of evolution is just a guess about how organisms change. c. Scientists are not very sure about the idea of evolution. d. Scientists have learned everything it is possible to know about the idea of evolution. Clear my choice

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.

small european communities with shared traditions consolidated into large new states (apex)

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.