Question

What is a heart?Why we need heart​

Answer 1

Answer:

the blood provides your body with the oxygen and nutrient it need

Answer 2

Answer:

The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes. ... "If [the heart] is not able to supply blood to the organs and tissues, they'll die."