Leftover radiation from the big bang is your answer hope i helped
The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.
The Nervous System and Endocrine Systems are the two systems which are responsible for controlling the whole body of an organism.
<h3>Which organ systems function as control systems, communicating with other cells/organs to regulate their activities?</h3>
The nervous system is the system which controls the system, major controlling, regulatory, and communicating system in the body. The nervous system is the center of all mental activity including learning, memory and thought. Together with the endocrine system, the nervous system is responsible for regulating and maintaining the homeostasis which helps to maintain the internal environment.
So we can conclude that the Nervous System and Endocrine Systems are the two systems which are responsible for controlling the whole body of an organism.
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