Answer:
Recently work in evolution theory has proposed that by relaxing selection pressure, which typically acts to streamline genomes, the complexity of an organism increases by a process called constructive neutral evolution.
Explanation:
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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C. Mutualism I put the other answer and I got it wrong :(
Answer: There are 206 bones in the human adult body, but 270 bones at birth.
