Answer:
A.Carbon Monoxide
Explanation:
Carbon Monoxide is a, colorless, odorless, poisonous gas produced when tobacco burns
Answer:
C
Explanation:
The blunde of His is an agruppation of neurons that are localized on the ventrical walls of the heart. It's mision is to transmit the nervous signals that come from the sinoatrial node that is located on the left atria of the heart, to the muscles that form the vertix of this organ, making them contract.
The answer is C: a collection of heart muscle component specializing in electrical conduction that allow the ventricles to contract.
Answer:
Regular physical activity can improve your muscle strength and boost your endurance. Exercise delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores. Regular physical activity can increase the production of hormones that make you feel happier and help you sleep better. A number of studies have found that exercise also helps to ease depression.
