They are living organisms. Not a very good question is there more to it
Answer: Exons
Explanation:
In eukaryotic cell the primary transcript are very long the contains coding region (exons) and non coding region (introns)
The parts of the gene sequence that are expressed (coding region) in the protein are called exons, because they are expressed, while the parts of the gene sequence that are not expressed in the protein are called introns, because they come in between the exons.
Intron is a portion of a gene that does not code for amino acids. These Intron sequence are cleaved out and exons are spliced (I. E combine together) to form the mature mRNA molecule.
Exons are the mRNA parts that are kept and used to make protein.
The nervous system is divided into several parts, and in this case, the answer is Sympathetic Nervous System.
SNS is responsible of the regulation of homeostatic organic mechanisms; such as fighting and running behaviors, heart rate, dilation of bronchi and pupils, and adrenal glands stimulation.
The answers to this question are the following:Base- pairing rule where RNA was made where the U strand being paired with A-strand and the C strand being paired to G-strand in transcription within the nucleus. This is done along with the strong strand in "DNA."
The answer in the first line is "Base-pairing rule" while in the second line is "DNA"