Take a tour of a plant cell to help you synthesize how photosynthesis works.
Bacteriophages turn the table on bacteria and the hunter becomes the hunted.
A Moment of Science wonders, why isn't there any frozen lettuce?
Oddly enough, a solution of 70% alcohol, that is, rubbing alcohol, is a more effective antiseptic than 100% alcohol. Another case of where more is not better.
Our bodies are also made up of living cells, the antibiotics have to distinguish between the cells in our bodies and the cells of the bacteria.