A food chain is one that includes a primary producer at the lowest trophic level and a herbivorous primary consumer at the second trophic level. renr 205

They create genetic variations

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.

Go into your kitchen and get some water or coolaid and warm up at hot dog