Answer:
the answers are 2 and 3 because its asking why there is much more water than P than Q
The cardiovascular system transports oxygen and nutrients to the cells and transports waste away from the cells
I think its because when your upside down, your not breathing right. So its a way of trying to breathe correctly.
They help form D organ system which is the
digestive system
<span>third layer of the canopy
</span>
