Answer:
b
Explanation:
take my word for it, or don't
I have shown my work on a piece of paper. If you need any help, let me know.
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
Pretty sure that’s false i think it does something with dopamine