The endocrine system is made of glands that secrete hormones. These hormones help regulate the organs and cells activity. The hormones among other things control your metabolism.
Only the bases varies from one nucleotide to another.
A long high sea wave caused by an earthquake, submarine landslide, or other disturbance. Undersea earthquakes, which typically occur at boundaries between Earth's tectonic plates, cause the water above to be moved up or down. Tsunami waves are formed as the displaced water, which acts under the influence of gravity, attempts to find a stable position again.
Each population of a species have different genes.
The answer is that they treat bacterial infections.