Answer:
Metabolic wastes or excretements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
This is what i found out i hope this is a good enough answer!! :P
I'm pretty sure you can do it on both but a child would be safer to do cpr on to me because, on an infant their insides are still really fragile so you don't wanna press to hard :)
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1.true 2.true 3. all of the above 4. HDL 5. true 6. two-four 7.true 8.race 9. Its either B or all of the above 10.true 11.D switch to yoga.
