We have Protons and Neutrons in the nucleus of an atom, Protons are positively charged, neutrons are non-charged particles.
<span>The closer you are to the poles of the Earth, the fewer ecological niches for species to fill. </span>
competition plays a very important role in ecology and evolution. The best competitors are the ones who survive and get to pass on their genes.
First comes fertilization, when two gametes combine to form a zygote.
Answer:
Hypotonic
Explanation:
there is less concentration in the blood compared to the brain
