Solution:
The genetic material dna consists of basic subunits called Nucleotides.
Nucleotides are the subunits of DNA. The four nucleotides are adenine, cytosine, guanine and thymine.
Answer:
A. Producers
Explanation:
Each level higher reduces by 10% so the bottom will have the most biomass.
Clonal selection identifies a __ lymphocyte that needs to be cloned for production of a specific antibody.
is B.