Why skin is the largest organ in our body? and why skin classified as organ?

1) Skin is the largest organ in the body because it surrounds the whole human body.

2) It is classified as an organ because of the fact that it is many cells working together to achieve the same goal and that is basically what an organ does.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.