Which example shows an interaction between the urinary system and the circulatory system? A. a break in a bone
B. the inhalation of air
C. a bee stinging the skin D. the blood flowing to the kidneys

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.