The bones themselves are NOT, but the whole spine is.
No the leeches are not vertebrates . Vertebrates are animals that have backbones. The backbone is a strong but flexible column of individual bony unit called vertebrae.
Notochords are important to vertebrates because it forms the main support of the body. A notochord is a flexible rod-like structure.
Internal skeleton (back bone) has an notochord to make it flexible
Vertebrates belong to the phylum Chordata. This phylum includes organisms with a notochord (flexible rod) at some stage in their development, as well as a dorsal nerve cord and pharyngeal slits. Vertebrates are characterized by having a vertebral column, which gives them their name.
Yes, lions, like all vertebrates, have a notochord. The notochord is a flexible rod-like structure present in the early stages of embryonic development that provides support for the developing spine.
The difference between the major phyla of vertebrates include chordates possess a hollow dorsal nerve tube, flexible rod-like axial skeletal structure, have gill slits or pharyngeal clefts and a tail
As owls are vertebrates - yes they have a back bone / spineYes, and its cervical vertebrae is long and flexible.
Snakes are vertebrates.
vertebrates
Yes, all vertebrates have a backbone. Birds are unusual because they have very flexible necks (usually), which is important for preening (they don't have hands or paws, and feathers require upkeep), but for energy-efficient flight they need perfectly rigid backs, so their mid/lower spine is rigid, and the upper spine highly flexible. You can explore this yourself during Thanksgiving. :-)
A toucan is a bird, and all birds are vertebrates.
No mongoose have spinal cords, but they are so flexible it's almost not there.