1 science
2 pseudoscience
3 science
4 both
5 pseudoscience
Answer:
A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
Explanation:
The one for the cells is the
cells need to be able to get oxygen gas nutrients and get carbon dioxide out quickly.
i’m not sure for the other ones
DNA has three billion letters.