According to the law of conservation of energy, energy can neither be created nor destroyed. If this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?

Assuming this is talking about the food pyramid. There is less energy at the top of the pyramid because energy burned off by the prey in this case.

Explanation:

If a predator were to kill and eat prey, the predator would have less energy than the prey did because the prey used that energy as a means of regulating body temperature and etc.

I'm pretty sure this is how it works, please feel free to correct me if you see anything wrong with this.

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