Answer:
i think its the first one (I'm not sure tho but i will leave the explianation)
Explanation:
Organic molecules are usually composed of carbon atoms in rings or long chains, to which are attached to other atoms of such elements as hydrogen, oxygen, and nitrogen.
(hope its clear )
If you need the answer please add the questions
The answer would be truly led
Answer: Plasma
Explanation:
Plasma is the liquid component of blood.