What's an animal with a backbone called; what's an animal without a backbone called? Please give examples of each.

Animals with a backbone (spinal columns) and a cranium
base are classified as vertebrates. Animals that lack such a column are called
invertebrates. There are more than 1 million known species (kinds) of invertebrates and
about 40,000 species of vertebrates.

Most vertebrates have
a spinal column made of bones called vertebrae.  But some, such as the shark, do not
have a bony spinal column.  Sharks have vertebrae made of
cartilage.

All vertebrates are bilaterally symmetrical -
that is, the left and right sides of the body are alike.  The body is usually divided
into a head and a trunk.  The more advanced land vertebrates have a neck.  In mammals,
the trunk is divided into a thorax (chest) and abdomen.  Vertebrates never have more
than two pairs of limbs.

Most vertebrates have a spinal
column made of bones called vertebrae (see SPINE).  But some, such as the shark, do not
have a bony spinal column.  Sharks have vertebrae made of
cartilage.

Vertebrates are classified in the phylum
chordata and make up the subphylum vertebrata. They may be further divided into eight
classes: (1) hagfishes ; (2) lampreys; (3) sharks and other cartilaginous fish; (4) bony
fish; (5) frogs and other amphibians; (6) reptiles; (7) birds; and (8)
mammals.

As invertebrates include a very large number of
animals which have been classified by scientissts in several major groups called phyla
including porifera, cnidaria, cnidarians, platyhelminthes, nematoda, annelida,
echinodermata, mollusca, and arthropoda.