After all, a nail is sharp, and the inside of the nose is sensitive. Putting a foreign object deep into your nasal cavity isn't particularly comfortable, and it can be certainly painful when the performer is learning to do the trick. However, another obstacle -- sneezing -- can be harder to overcome.
Osteoclasts are the bone cell that destroys bone. This allows bone  remodeling, and allows the skeletal system to act as a reservoir  for minerals to maintain blood mineral â¦ levels. Bone cells that are involved in reabsorption and breakdown of the  bone matrix are referred to as osteoclasts.
In plant cells this is done by synthesising a new cell plate in between the two nuclei, which becomes a part of the new cell wall of each genetically identical daughter cell as the cytoplasm divides and the two cells split. The cell cycle (interphase) and mitosis are vital in both plant and animal cells as they allow growth and repair and asexual reproduction to occur.