African infants have had a greater chance of survival if they have a living maternal grandmother who is without young children of her own. this fact has been used to support an evolutionary explanation of

Which situation is most likely to show a constant rate of change?

What effect did the lawpassed by parlament have on the .

Which best expresses the radical republican philosophy of reconstruction? a. the confederate states were conquered territories that should be ruled by military governors. b. the southern states actually never left the union. c. if ten percent of the voters of a state that had seceded took an oath of allegiance to the union, then it should be readmitted as a state.