Answer:
Brain.
Explanation:
When you become too cold, your hypothalamus will signal your brain to raise the temperature.
There is more oxygen and carbon dioxide in the surface of the ocean because these gases rises and floats thus it will stay near the surface. Also, the solubility of these gases in water is small therefore only small concentrations can be found in water.
Explanation:
The role of active cytotoxic T cells is to attack <u> </u><u>body cells that have been infected</u>
Answer:
The chemical reactions required to break them down would be too slow without enzymes.
Explanation:
Answer:
Lipids
Explanation:
Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids, only certain substances can move through. Phospholipids are the most abundant type of lipid found in the membrane.