Which of the following statements is true?

the ventricles receive blood from the body.
the atria pump oxygen-rich blood to the body.
blood in the heart only flows one-way.
the heart is the largest organ in the body.

According to harry harlow’s experiment what behavior did the baby monkeys exhibit when the cloth mother was present? a. they cowered in the corner of the room. b. they were willing to explore the room. c. they sought refuge with the wire mother. d. he behaved aggressively toward the cloth mother.

Heat affects all vitamins. which vitamins are more sensitive to heat and leach into water? a. vitamin a and d b. vitamin b and c c. vitamin e and k d. vitamin d and c

Which statement supports the principle ideas of jean piaget's philosophy? adults should not interact with teachers. children are best educated through standardized training. adults do not think better than children, but they think differently. children should not form hypotheses until they are certain their findings will be correct.