6. ¿Cuál de las siguientes moléculas está formada por glicerol y ácidos grasos?

Azúcares
Almidones
Lípidos
O ácidos nucleicos

Lípidos

Explanation:

there's the proffessional site that will you.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.