Spine or Vertebral column is composed of a series of 31 bones known as vertebrae.Spine or Vertebral column is composed of a series of 31 bones known as vertebrae. Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock.
Atoms are the smallest unit of non-living things and CELLS are the smallest unit of living things.
Answer:
Eleven islands make up 95 percent of the Philippine landmass, and two of these — Luzon and Mindanao — measure 105,000 square kilometers (40,541 sq mi) and 95,000 square kilometers (36,680 sq mi), respectively.

You can easily remember it because the scientific name of leech is Hirudinaria. So it secretes anticoagulant named hirudin. Which help it to feed blood longer
Mhmmmmm I think the answer is a but I’m not for sure......