I believe that you're question is referring to homeostasis
Answer:
Essential bonding's are developed in the amino acids leading to formation of DNA. During cellular interaction they also provide pathways for active transportation.
Explanation:
Hydrogen bonding causes the folding of protein thereby stabilizing their structure and formation of DNA and essential bio products. These H+ bonds holds the double helix DNA molecule which zips and unzips during the cell division leading to the formation of cells with new genetic material. Also during cellular interaction and transfer of material through a permeable membrane, there is a proton oriented gated channel that causes active transport.
Hence, hydrogen bonds and van der Waals interactions are necessary for cells
The answer is the number 3 : integumentary system
Why:
The integumentary system consists of the skin, hair, and nails. Functions of the integumentary system include providing a protective covering for the body, sensing the environment, and helping the body maintain homeostasis.
