Respiratory system helps in breathing and it leads to exhalation of the gas carbon dioxide which is not required by the body. The integumentary system is the first line of defense and protects the body from invadig microbes, dust, and other harmful substances. The digestive system protects the body by enabling digestio of food and providing energy to sustain, further the toxic waste materials are also released during the process.
The cell process that is controlled by the nucleus is Protein Synthesis.
The size of food web is limited by the number of animals included in the area.
-Pepetreefrogthe2nd
I believe you’re referring to the body’s fight or flight response.
