I think the answer to this is the kidneys
Store energy, provide metabolic fuel and help in digestion
the bird is a barn swallow.
Vertebrae are the scientific term for the backbones.
All backbones are backbones... right? :'D
However, the vertebrae are only a bone GROUP; there are other types of bones like joints, shafts and etc which don't come under the vertebrae clssification.
