A formation of a mixed....
Active muscles demand huge amounts of oxygen, and the circulatory system works hard to provide it. Blood carries oxygen to the muscles. When the body is at rest, blood carries nutrients to the muscles so that they can repair and rebuild themselves. Blood also carries away the waste products that hard-working muscles produce, back out through the lungs to be filtered.
so they Circulatory system xx muscular system :)
Answer:
The sun gets its energy from the process of nuclear fusion. This process occurs in the sun's core or interior, where temperature and pressure are extremely high. During most of the sun's life, energy comes from the fusion of hydrogen nuclei
Explanation:
Because the have a weird gene that makes them immune. Please give medal
Answer : Option D) en que puedo servirle
Explanation : Anytime if someone enters into a store the sales person always asks for the requirement of the customer's demand in spanish it will be en que puedo servirle. It is a good gesture for gaining more customer satisfaction of a particular store.