D repeated rising and lowering the water table
It occurs 14 days before the menstrual s
cycle
Answer:
Galaxies rotate in their center with parts of galaxies that are far away from centre.
Explanation:
Galaxies move throughout the space. It rotates around its center with the portions of galaxy that are far from the center and moves relatively slowly from other objects near the center.
Because of the Big bang explosion because of which the Universe have expanded, galaxies are going away from other galaxies. The galaxy cluster also moves around the cluster center.
What I know is that amino acid has side chain, amine groupe ,and groupe of carboxyl so what make them difference is side group where the is 20 different R-group which give each individual characteristics
