Exercise and not to smoke or be around second hand smoke. But exercise is probably the more important thing you can do to protect your respiratory system.
Answer: cells within the systema nervosum that function to process and transmit information. In vertebrate animals, neurons are the core components of the brain, neural structure and peripheral nerves
Explanation: plz mark braines, have a wonderful day :)
C. An ovary that's apart of a females reproductive system.
Answer:
CB
because if you put yourself in situations where it present you will feel more need to participate
They are common problems of the Skeletal System
