Answer:
Proteins and nucleic acids
Explanation:
Nitrogen compounds in animals that are no longer of use, or are in access are excreted from the animals body, and are thus called nitrogenous waste. These nitrogenous waste can be excreted in three different ways.
1. Ammonia
2. Urea
3. Uric acid
Number 1 is 4.875 Number 2 is 3.47 repeating
It describes how, when particles/mc/elements react, despite forming different substances the mass is neither created nor destroyed but only converted.
If you type in the letters (uppercase and lowercase matters) into google it will give you the answers
