What remains left is called a <span>Fossil</span>
The most important compound in living beings includes nucleic acid, carbohydrates, proteins and lipids
Answer:B is the right answer I am sure.
Explanation:
The circulatory system transports the nutrients and oxygen throughout the body, and the excretory system will excrete the waste and the body will start to sweat in response to the heat to maintain homeostasis.
