¿Después de que el sistema digestivo saca las sustancias nutritivas de los alimentos que hemos comido, el sistema circulatorio se activa para transportar esas sustancias a las células del cuerpo que
lo necesitan, como está formado este sistema circulatorio en el humano?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

This is so important ugh its 25 points