Protons and Neutrons affect the mass. Protons and Electrons change the charge of the atom (positively or negatively charged). Valence electrons are the ones that do fun stuff in chemical reactions, they are responsible for making/breaking bonds, at least to my understanding.
Hope this helps.
A. osmosis because no energy is needed to carry it out
Answer:
absorb the oxygen from water .. then swallowed by the mouth and pumped out the gills.... then pumped out behind the operculum or gill cover
Explanation:
just did it
A biochemical cycle that is well know to everyone is the water cylce
Allele frequency<span>, or </span>gene frequency<span>, is the relative frequency of an </span>allele<span> (variant of a </span>gene<span>) at a particular </span>locus<span> in a </span>population, expressed as a fraction or percentage.<span>Specifically, it is the fraction of all chromosomes in the population that carry that allele. </span>Microevolution<span> is the change in allele frequencies that occurs over time within a population .</span>
