In addition to opposing jaws, living gnathostomes also have teeth, paired
appendages, and a horizontal ... which includes the familiar classes of bony fish,
birds, mammals, reptiles, and amphibians....
Feb 10, 2008 ... According to the lateral-fin theory, paired limbs are derived from ... (Bottom)
Names of corresponding parts of pelvic appendages are shown in ... which is
jointed with the skull, (2) supracleithrum, (3) cleithrum and (4) clavicle. ...
Elements of the girdle of the reptiles were modified in birds to permit flight.
as pets – fish, amphibians, reptiles, birds, and mammals. The biological ... Fish
have paired appendages (fins) adapted for movement in water. • Protected skin.
consists of pectoral & pelvic girdles plus skeleton of fins & limbs; Some
vertebrates ... tetrapods with even vestiges of anterior limbs, e.g., turtles & birds &
mammals ... Tetrapods - pair of cartilaginous plates form in embryos & each
ossifies at 2 ...
**The species name always consists of the Genus name (Homo) ... worms,
insects, fish, birds, humans. .... appendages, first 2 pair different from the rest.
1 Objectives; 2 The Vertebral Column; 3 The Skull; 4 The Rib; 5 The Forelimb; 6
The Hind Limb; 7 The Girdles; 8 Categories Of Bones; 9 Bird Skeletons ... Fish,
frogs, reptiles, birds and mammals are called vertebrates, a name that ... Paired
ribs are attached to each thoracic vertebra against which they move in breathing.
brain and spinal cord. 2. A flexible rod, the notochord, forms on the dorsal side of
the primitive gut in the early embryo and is .... spinal column. The name
vertebrate comes from the indi- ... great lines of terrestrial vertebrates, birds (
descendants of ... foot long, respired with gills, and had no paired fins—just a
Note the gill slits and the absence of paired pectoral and pelvic fins. ... gets its
name from the fact that their skeleton is made of cartilage, not bone. .... today);; an
extraordinary array of dinosaurs from some of which evolved today's birds. ... The
2 orders shown in red (armadillos, sloths, giant anteaters) probably arose in ...
Turtles in separate clade. 2. Birds in reptile clade ? ? Trends in the Evolution ... 2.
Nerve cord expanded into brain. 3. Evolution of jaws. 4. Paired fins evolved ...
The names and numbers of the different types of vertebrae in meat animals are ...
nuchae, the head of the standing animal would droop between its forelimbs. Plan
of neck in beef, showing:1, ligamentum nuch; 2, atlas; and 3, axis. .... The radius
is joined to the ulna and is the shorter and more anterior bone of the pair.