As humans sometimes experience, a cold environment can result in<span> </span>shivering<span>. This is when skeletal muscles begin to shake in small movements, creating warmth by expending energy. Humans can also sweat in high temperatures. The water on the surface of the skin is able to absorb a lot of heat during evaporation, resulting in cooling of the body.</span>
I think the first one is right !.... but the for the other one it's B .
The answer would be, True, A chloroplast is an organelle inside of cells.
Plants use and produce both oxygen and carbon dioxide.
