9. This is the liquid medium of the circulatory system that is constantly flowing throughout the body and is bringing important substances that sustain life
A. Heart C. Blood
B. Blood Vessels D. Lungs
10. The part of the brain that connects with the spinal cord and controls the involuntary activities like digestion, heartbeat and breathing
A. Cerebrum C. Brain Stem
B. Cerebellum D. axion
Answers & Comments
Answer:
9.A. Heart
10.C Brain Stem