The difference between the meanings of combining forms spondyl/o and vertebr/o is spondyl/o and vertebr/o both mean vertebra. There is no difference because they are both vertebra.
Spondyl/o is a combining form meaning vertebrae. The two combining forms for vertebrae bones of the spine, are vertebr/o and spondyl/o.
The form of choose is sllt
Plant has such a developed structure to protect they have cell wall which give it rigidity and structure and also have cellulose which provide strength
Autonomic nervous system innervates the entirety of the gastrointestinal tract