Answer:
90% of energy is lost as heat at each trophic level. Therefore, only 10% passes to the next level.
Explanation:
Honestly i know its the adult stage
<span>s that a single on off switch can control the whole cluster of functionally related genes; these genes are coordinately controlled (ex: when Ecoli must make tryptophan for itself because the nutrient medium lacks this amino acid all the enzymes for the metabolic pathway are synthesized at one time)</span>
