Protein and water
The two main substances that make up a virus are nucleic acid (DNA or RNA) and protein. When these substances are broken into smaller fragments, the nucleic acid fragments are called nucleotides, and the protein fragments are called amino acids.
Amino acids and nucleotides
Ions and nutrients
The two main substances found in urine are water and waste products, such as urea, creatinine, and uric acid.
virus
Ions and nutrients
There are only two substances found in between the blood cells and the capillaries. These are plasma and interstitial fluid.
ions and nutrients
Hydrogen can be found in water and air.
Chemicals, protein, ions and water
tobacco mosaic virus was the first virus found, but poliovirus was the first one whose presence has been recognized (in Ezypcean paint)
The yellow fever virus is found mainly in Africa and South America.