Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
Answer: 2 cells, Prophase 1, chromosomes lining up at equator of cell, anaphase 1, four times
Explanation:
It is bcz the earth is in the effect of sun while moon is under the effect of earth. the earth. So the answer is that the gravitational pull of earth is greater than the moon
