B is the answer for your question
Answer: petroleum
Hope this helps
Answer:
keratin
Your nails are made of keratin
Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body.
Explanation:
Answer:
b. False
Explanation:
Channel proteins use passive transport, that is, they do not require energy such as ATP for transporting molecules.
Well advance in technology is always good. The advancement helps so that information can be gathered quickly.Also it helps to understand things better. like before telescopes or microscopes scientist could only eyeball things but later the advancement made it easy to see things human eyes cant see.
i hope this is good
