Do you mean one " piece" of bone? If the spine were solid it would be inflexible and our range of motion would be reduced. We could not bend at the waist or bend our necks or anywhere in between.
It wouldn't be bendable and you wouldn't be able to walk. You would have trouble doing anything because the backbone supports some of your weight so you won't be able to move.
Yes, sail fish has a back bone. They are part of the phylum chordata, so they do have a back bone.
Back Bone: your spine...made of spinal vertebrae
Irregular Bones
Yes, as a vertebra is a piece of a backbone. As such invertebrate means an organism that does not have a spinal column or back bone. Crabs have an exoskeleton (their external shell serves as a skeleton) instead of a back bone, they are therefore considered invertebrates. Crabs have no bones, including no vertebrae (backbones). They are invertebrates.
Did you mean "vertebrae"?"A vertebra (plural: vertebrae) an individual bone in the flexible column that defines vertebrate animals, e.g. humans."Definition from Wikipedia.http://en.wikipedia.org/wiki/Vertebrae
It is your backbone and forms a protection around your spinal cord. It runs from the base of your skull to your "tail bone".
There is cartilage in backbone and between the parts of the vertebrae of the backbone but the bone itself is actually an organ that produces blood like all other bones do.
Of course it does. Although, as in all vertebrates, the backbone is not a single bone, but a set of vertebrae, small bones linked together, so that the overall backbone will bend, while still protecting the spinal nerve.
Birds have one backbone that consists of various numbers of vertebrae. There are 11 to 25 cervical vertebrae (neck), the synsacrum (fused vertebrae of the back connected to the pelvis), and the pygostyle (tail bone).
The bones of the back are the vertebrae, doughnut-shaped bones with the spinal nerves running through them and spongy cartilage discs between most of them. In humans, the spine consists of 33 vertebrae divided into five groups: the cervical vertebrae (neck), thoracic vertebrae (ribs), the lumbar vertebrae (back), the sacral vertebrae (hips) and the coccygeal vertebrae (coccyx or tailbone).
Crabs are invertebrates, animals without a backbone. As crustaceans, they have exoskeletons which are molted as they grow.
The vertebrae. There are 7 in the neck (cervical), 12 in the thorax (chest), and 5 in the lower back (lumbar). The wedge shaped bone in the back of the pelvis (the sacrum) is composed of 5 fused vertebrae and the the coccyx (or "tail bone") has 3-5 vertebrae.