B. in order to back up the conclusions he publishes as a result of the experiment
Antibiotics work by affecting things that bacterial cells have but human cells don't. ... The antibiotic penicillin works by keeping a bacterium from building a cell wall. Bacteria and human cells also differ in the structure of their cell membranes and the machinery they use to build proteins or copy DNA.
Answer:
the sperm fertilizing the egg
Explanation:
Answer:
Explanation: IT should be B
