Answer:
central nervous system
Explanation:
The central nervous system is made up of the brain and spinal cord which carry out the function of processing information about the environment using the five senses and sends out your bodies response. such as if your finger touched the hot stove, that signal gets sent to your brain which sends a signal to your spinal cord telling your arm to pull away from the hot surface
It changes because it goes through phases of growth and changes size and it developed more.
Hope this helps.
One of the functions of the gallbladder is to store bile. The bile in the gallbladder tends to be excess from the liver, and is used throughout the digestion process.
Fun Fact: While the gallbladder aids in digestion, it is not required, and humans can survive without it!
