Answer:
one is used by plants and the other by animals
The answer would be -2 and positive 6 because -2*6=-12 and -2+6=4
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Phlagellum... i have to have 20 characters for a simple answer, so im just typing i can actually submit my answer
