Biology
Biology, 26.01.2021 20:10, alainacorkell2087

Quien me ayude le doy corona lo sigo y le doy 5 estrellas Nececito sacar una lluvia de ideas de este texto.

El sistema circulatorio humano
En los organismos multicelulares, los nutrientes al
igual que los desechos celulares, deben recorrer
ciertas distancias, ya que están siendo asimilados y
producidos por órganos especializados que están
lejos. En consecuencia, el oxígeno viaja desde los
pulmones, encargados del intercambio gaseoso,
hasta las células. El dióxido de carbono por su
parte, recorre el camino inverso, es decir, sale de las
células para ser eliminado por los pulmones.
Para que este recorrido sea posible, una serie de
estructuras se han ido especializando para dar lugar
al sistema circulatorio, el cual transporta sustancias
como nutrientes, hormonas, gases y desechos. Estas
sustancias son llevadas y disueltas en la sangre que
es impulsada por el corazón. En este recorrido, el
sistema circulatorio recibe los nutrientes del aparato
digestivo y el oxígeno de los pulmones, recoge los
desechos metabólicos de las células como el CO2
y la úrea, y los deposita en el sistema respiratorio y
excretor para ser eliminados. Ver Figura 7.

Muchas gracias porfavor ayudenmeee

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