Answer:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast.
Use of chemical fertilizers
I believe that the best answer to this question is d. amino acids.
C. When the air cannot support any more water vapor
Has normal (2n) amount of DNA;
Has twice (4n) the normal amount of DNA