The answer is because biology is easy and they're known around the world.
Answer:
Photosynthesis is a process by which plants use the sunlight to make their own food. The main role of photosynthesis is to produce food for the plant.
Competition allows science to advance at a faster pace.
Think of it as an arms race: when a country builds one battleship, their enemy builds two. This continues as both countries try to outdo each other. Competitive science works the same way.
