There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link:https://www.creative-biogene.com/support/Knockout-Cell-Lines-in-Antibody-Screening-and-Validation.html
Coal from swamp plants that formed millions of years ago.
converting food into smaller molecules
The answer is B) Grass, grasshopper, snake, hawk.
Hope you enjoy the rest of your day! :)
