It is called a herd
Im just writing this for the character limit
The answer is A:
The SUGAR-PHOSPHATE CHAINS form the sides, and the BASE PAIRS form the rungs
Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. So, if these amino acids are in anyway related to each other, there can be some similar resemblance between the beetles.
The answer in the space provided is anaerobic respiration.
It is because this allows of having to utilize other substance than oxygen such
as nitrate or sulfate to be their electron acceptors in which is for organisms
that undergoes respiration.