Question

Exchange of gases or removal of waste in singled celled organism nut it is not multicellular organisms

Answer 1

One of the most important functions that bones have in our body is providing support and structure. Aside from teeth, bones are the hardest and most rigid structures in our body. According to the National Naval Medical Center, without bones the human body would essentially be nothing more than a shapeless blob of tissue. Bones are strong but light, which gives the body support and shape without weighing it down.

PROTECTION

According to Minnesota State's Emuseum, the skeletal system also plays an important role in the protection of the vital organs throughout the body. This protective role is perhaps most obvious for the skull and the backbone (vertebrae) as these bones protect the central nervous system. This protective role is especially important because the central nervous system controls the rest of our body and is very fragile. The ribs also protect the vital organs in the chest, such as the lungs and heart.