B. The flow of electricity between a cloud and the ground.
our body tells us we need more energy by feeling hungry (like your stomach is rumbling), and it also tells us by feeling tired. also if your body is short on fluids, you will start feeling fatigued.
The nervous system sends electrical impulses to certain cells receptors that stimulate the immune system to produce antibodies to fight foreign bodies.
The answer would be D, because conservation is the careful monitoring of a substance, and recycle uses the least amount of abuse on surroundings.
Answer:
1. Protein - build lean muscle and strengthen tendons
2. Lipids - insulation and long-term energy
3. Carbohydrates - provides quick, easily digested energy
4. Nucleic Acids - repair and replicate DNA and RNA
Explanation:
a. Think of protein as what helps your muscles grow and strengthen
b. Think of lipids as fats (blubber, the extra fat, helps insulate seals from the cold)
c. carbohydrates are found in starch and bread products, and are used to help build up energy prior to marathons.
d. nucleic acids - think of nucleus; it is where genetic material is located, and also where DNA and RNA is located.
