What do Clinton 5 and little rock nine have in common?

From which of the following literary works is this quotation most likely taken?

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.

Both the nervous and endocrine systems send electrical and chemical signals for internal communication. select the best answer from the choices provided t f