But it was not until 1928 that penicillin, the first true antibiotic, was discovered by Alexander Fleming, Professor of Bacteriology at St. Mary's Hospital in London.
They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances
Answer: You use a restatement of the speech's thesis; a review of the main points discussed within the speech; and a concluding device that helps create a lasting image in audiences' minds.
Explanation:
Answer:
I’m pretty sure it’s all of the above!
Explanation:
Polypeptide is a sequence of amino acids
