DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).
The answer is A) That the seed eating species would disappear, because the seeds would disappear followed by the finches that ate those seeds and the other finches that eat other food like insects would thrive.
