Answer:
Gram-positive microscopic organisms have a peptidoglycan layer on the exterior of the cell divider. Gram-negative microbes have peptidoglycan between layers. Penicillin works best on gram-positive microbes by restraining peptidoglycan generation, making the cells cracked and delicate.
Explanation:
HOPE THIS HELPS!!
Whatever is the best option for my brother/sister. That's what I can only say because you didn't list any options.
Your answer to this is most likely:
He discovered many other important elements.
You can put saran wrap on it i hope this helps
