Answer:
a
Explanation:
Because the chromatids now contain little bits of DNA from one another they aren't identical. hope it helps
I would say the first one
Competition and predation
By dating the rocks in the ever-changing crust, as well as neighbors such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.
Diffusion will continue until a condition of equilibrium<span> will be reached. Ions or Molecules are equally balanced on both sides or a permeable membrane.</span>
