The Aromatic hydrocarbon is the most common in nature.
Answer: A chromosomes
Explanation: A chromosomes has a large strand of dna and is made up of many genes.
Meiosis involves crossing over where chromosomes exchange genetic segments, resulting in different sets of chromosomes. Each time an egg or sperm created, it is different due to this recombination. Mitosis on the other hand is non-sex cells replicating exact copies of themselves which lead to no genetic variation as they aren't involved in producing offspring.
This process moves carbon from biotic to abiotic matter. Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall.
Answer:
1. mutation and genetic recombination
