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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....

Origin and Comparative Anatomy of the Pectoral Limb


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.

Diversity of Vertebrate Animals

www.marietta.edu/~biol/introlab/Vertebrate Diversity.pdf

as pets – fish, amphibians, reptiles, birds, and mammals. The biological ... Fish have paired appendages (fins) adapted for movement in water. • Protected skin.

Comparative Vertebrate Anatomy - Lecture Notes 5


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 ...

Taxonomy List


**The species name always consists of the Genus name (Homo) ... worms, insects, fish, birds, humans. .... appendages, first 2 pair different from the rest.

Anatomy and Physiology of Animals/The Skeleton - Wikibooks, open ...


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.

Chapter 48: Vertebrates


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 primitive tail...

The Vertebrates - RCN


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 ...

Phylum Chordata Three Subphyla Eight Vertebrate Classes Eight ...


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 ...

Structure of the Skeleton


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.

Helpful Resources

Answer Key-The Molecular Connection 1. Find the human ... - PBS


vided and underline their names. 2. Compare the human amino acid sequence with each of these five animals by counting the number of times ... Paired appendages and spinal column: in all species except lamprey. • Paired legs: in ... Chickens and turkeys are both birds and have the same sequence of amino acids in their.

Diversity of Vertebrates


Bilateral symmetry. 2. Two pairs of jointed locomotor appendages, which can ... The exception to this are the cartilaginous fish, because cartilage does not fossilize well, and the birds, due to the fact that they have ... jaws and paired appendages ... name implies continued tie to water - eggs must be laid in water or at least in ...

Phylum Chordata: The Vertebrates


750 species; Have paired appendages; Many have acute senses; Sharks have a ... Over 8600 species & 20 orders of birds; Classified into 2 general groups ...

Two Legs, Four Legs, Six Legs, More! - National Aquarium


5A-K-2 #1: Some animals and plants are alike in the way they look ..... their name suggests, they are able to eat small birds such as ... The first pair of legs has.

MAKING CLADOGRAMS: Background and Procedures


homologous structures (for example, the front legs of a horse, wings of a bird, flippers of ... set #2: Paired appendages (legs, arms, wings, fins, flippers, antennae) ... F. Application : (For each new vertebrate, add its branch line and name in the ...