The sun. Greenhouse gases absorb heat better. So the more of these gases, the hotter it gets. However, the earth itself is naturally heating, but it goes too fast for live to adjust to the temperatures.
<span>Oxygen-15 is an isotope of oxygen, frequently used in positron emission tomography, or PET imaging. It has 8 protons, 7 neutrons, and 8 electrons. The total atomic mass is 15.0030654 amu.</span>
Answer:
cells have many structures inside of them called organelles.
That would be: <span>stomach; small intestines</span>
Because the cell theory is technically correct. So why would the cell theory be disapproved if it is accurate?