They can both be used to identify organisms. Also, the phenotype of an organism is different depending on the genotype of the organism, making them relate to one another.
Hope this helps. Good luck! :)
Answer:
1.Nitrogen is the answer because carbohydrates contain carbon,hydrogen and oxygen.
2.They both have a nucleus-----prokaryotic cells are cells whose nucleus is not membrane bound while eukaryotes are cells whose nucleus is membrane bound
