Respuesta :

Answer: The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions: Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).

Explanation:

Answer:

Helps breathing

Explanation:

the ability of the circulatory and respiratory sys8to supply oxygenate skeletal musc8during susstained physical activity