They ensure they leave the system and they also ensure that people get the nutrients they need.
If you look at Cosmos episode 1, I'm sure you find an answer there.
Answer:
<em>To study the genetic causes of disease and for the development of diagnostics and drugs. And detecting bacteria and viruses in the environment and for determining paternity.</em>
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<span>Neils Bohr </span>developed a model of the atom (Bohr model) to explain how the structure of the atom changes when it undergoes energy changes. His major idea was that energy of the atom was quantized (this means that the atom could only have very specific amounts of energy) and the amount of energy in the atom was related to the electrons possession in the atom. In the Bohr model, electrons travel in orbits around the nucleus. The further the electron from the nucleus the more energy it has. Bohr used Planck's quantum concept of E=hv.
Answer:
well you didnt give me a link to the story or text so i dont have any info to answer sry ;(
Explanation:
