<span>a. they harm the cells they enter.
</span>
D.increase the amount of essential fat
Answer:
We use the first law of motion.
Explanation:
1st: Newton's first law of motion states that an object in motion will stay in motion unless acted upon by a force. ... In swimming, the force produced by the swimmer is equal to the mass of the swimmer multiplied by the acceleration of the swimmer in the water.
Obsessive–compulsive disorder (OCD) is amental disorder where people feel the need to check things repeatedly, perform certain routines repeatedly (called "rituals"), or havecertain thoughts repeatedly. People are unable to control either the thoughts or the activities for more than a short period of time.
