Question

a. Spines of calcium carbonate are present on the body.

Answer 1

white colour in our body

Answer 2

Spine of calcium carbonate are present in the body of human and other vertebrate.

Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx. Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.