[25 points] what type of organism is the least numerous in a marine ecosystem? (producer, primary consumer, secondary consumer, etc.) and why?

secondary consumer

Explanation:

They are the least because they play a less important role in the ecosystems.

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