structure a is _ (mitochondrial dna, chromosomal dna, viral rna, or plasmid dna). structure b is _ (same choices). Structure A is responsible for _(transformation, conjugation, binary fission, recombination, or transduction). while structure b is responsible for _ (same choices).

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.