Which part of the heart contracts and forces oxygen-rich blood throughout the body?
a. left atrium
b. right atrium
c. left ventricle
d. right ventricle

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

Jim and phil are changing the oil in jim’s car. jim is trying to remember all the actions involved in changing the oil. phil is trying to remember the first time he ever changed the oil in his car. jim is trying to recall a memory and phil is trying to recall a(n) memory.

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.