Photosynthesis is a process mechanism in plants<3
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.
I think it's so your lungs can expand to help you breathe properly ? You may have to wait for some more answers to come through