Gaz respiratoire (en mL) Dioxygène Dioxyde de carbone 100 mL d'air entrant 21 0,03 b Composition en O, et en CC entrant et sortant des poumo 100 ml d'e sortant 16,2 4,3 le l'air un lapin

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

the answer would be..

b. sucking

a symbiotic relationship with the mitochondria

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.