The answer i think is gene and i can garantee
it is correct
Answer:
Share valence electrons
Explanation:
Covalent bonds are also known as molecular bonds. This is the type of bond that occurs between non-metals and non-metals. This type of bond can happen between two of the same elements or with other elements that are usually positioned near each other in the periodic table.
This is different from ionic bonds where atoms are lost or gained. This type of bonds occur between metals and non-metals.
The eubacteria and the archaebacteria
Because it is catalyst which speeds up or slows down the speed of the chemical reaction without being changed or used up