When a child discovers that anything that is dropped falls to the floor, he is acquiring knowledge. a)social b)cultural c)logico-mathematical d)empirical

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

Which of the following substances would you expect to find in the blood, and not in the lymph? selected answers: calcium glucose calcium glucose estrogen oxygen fatty acids water answers:

Which of the following organizations is a part of the scouting movement? a. junior achievement b. girl guides c. boys and girls club d. 4-h