A person is considered obese if his/her body weight is 20% over than his/her ideal body weight.
Answer:
the cell membrane
Explanation: Cell membrane protects animals cells from harmful chemicals. Explanation: The cell membrane is a tough covering composed of the phospholipids and proteins and forms a bilayer around the cells
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C. chemical digestion. sorry if I am wrong
Answer:
When heart rate or rhythm changes are minor
Your heart rate or rhythm can change when you are under stress or having pain. Your heart may beat faster when you have an illness or a fever. Hard physical exercise usually increases your heart rate, which can sometimes cause changes in your heart rhythm.
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Drugs and supplements are similar in that both have an effect on the nervous system and that both are psychoactive substances. They are different in that drugs are often necessary to help someone overcome an illness, while supplements are optional and not necessary.