Answer:
Eutrophication
Explanation:
Eutrophication is the process where organic matter and nutrients build up in a body of water and increase plant growth.
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.
Answer:
b., c., e. are the answers.
Purines have double rings, whereas pyrimidines have single rings.
The study of the ear is called otology
