Explanation:
1)
building blocks of Carbohydrates are monosaccharides that are simple sugars
2)amino acids are the building units of proteins there are 20 amino acids found in human body that are building blocks of proteins
3)Nucleotides are the building blocks (monomers) of nucleic acids, DNA and RNA.
The classical music is the independent variable
ANSWER:
I think it is the first one
Explanation:
Speciation is the process in which new species are created through evolution. I might be wrong though.
the evolutionary process through which new species emerge
They transport oxygen to all the cells of the body
