All living organisms are made of only 20 different aminoacids- this is the correct answer! This means that the genetic code only codes for those 20 aminoacids (for example Glutamine and Lysine).
The 20 aminoacids that can form proteins are also called Proteinogenic amino acids.
I think it is the Epidermis
Answer:
The animals that can live in the hydrosphere and lithosphere are types of lizards and other amphibians that can burrow into the earth and live in the...
