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* indicates required question\n1. email *\n\n2. name: *\n\n3. 1. what are the parts of a closed loop systems model? mark only one oval.\ninput, process, output\ninput, process\ninput, process, output, feedback\ninput, output, feedback\n4. 2. the nucleus of an atom is made up of: mark only one oval.\nprotons & neutrons\nprotons & electrons\nneutrons & electrons\nprotons, neutrons, electrons
Answer
# Brief Explanations:
1. A closed - loop system model has input, which is the data or resources entering the system. The process is what the system does with the input. The output is the result of the process. Feedback is the information that is sent back to the input or process to adjust the system's behavior. So the parts are input, process, output, feedback.
2. The nucleus of an atom is the central part. Protons and neutrons are located in the nucleus, while electrons orbit around the nucleus.
# Answer:
1. input, process, output, feedback
2. protons & neutrons