Decide whether each of the following situations is an example of homeostasis. if it is an example, write and h next to the statement. if it is not, write n

6. when you eat salty food, excess salt is excreted (sent out) through urine so that the amount of salt in the blood remains constant.
7. when you fail to get enough sleep, you feel tired the next day.
8. if your blood pressure becomes too low, sensory neurons stimulate the nervous system to increase the rate at which the heart pumps.
9. when you take a deep breath, the volume of your chest cavity increases.
10. when you learn a physical skill, such as skiing, the part of the brain called the cerebellum coordinates and balances the actions of the muscles.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

carbon traps heat so more of it makes it hotter causing global warming. during the ice age carbon levels in the atmosphere were low so it got very cold. so the common things between them is carbon levels in the atmosphere.