Select the correct locations in the diagram. The diagram below represents four species of invertebrates as they progress through three stages of embryonic development. Select the two species that are likely to be the most closely related.

did you fail the test? xd

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides