Endosymbiosis
that is my explanation hopefully its right
What? I don’t know what ur saying no offense
Answer:
The genome of an organism is inscribed in DNA, or in some viruses RNA. The portion of the genome that codes for a protein or an RNA is referred to as a gene. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.
Explanation:
1. Small Intestines
2.Vitamins
Sorry i don’t know the others
