It's an sight observation you're using your eyes to see it it's one of your 5th sences
Answer:
I think its 4
Explanation:
I don't think DNA is a lipid I just think it helps deal with lipids but is not a part of one I think that acid is a lipid tho but thats why I chose 4 may be wrong tho
viruses multiply only in living cells, so I hope this helps <3
