KINGDOM ANIMAL

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KINGDOM ANIMAL. PHYLUM: CHORDATA SUBPHYLUM: VERTEBRATA. VERTEBRATES. ANIMALS WITH: Dorsal nerve cord Hollow backbone Ventral heart . 5 major classes. Classified by: Skin covering Heart chambers Reproduction Type of limbs How they maintain body temperature. - PowerPoint PPT Presentation

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VERTEBRATES

KINGDOM ANIMALPHYLUM: CHORDATASUBPHYLUM: VERTEBRATAVERTEBRATESANIMALS WITH:Dorsal nerve cordHollow backboneVentral heart

5 major classesClassified by:Skin coveringHeart chambersReproductionType of limbsHow they maintain body temperature

HOMOLOGOUS STRUCTURESshow relationships

ChondrichthyesSharks, rays Skin covering: teethTwo chambered heartExternal or internal fertilizationLimbs finsCold blooded, aquatic

Skate egg capsule

For a bowl of soup, we alter the ecosystem

OstheicthyesBony fishectothermic (cold blooded), aquatic vertebrates.skin is covered with scales.limbs - fins for swimming.breathe with gills. External fertilization - lay eggs that must be in water.

AMPHIBIANSFROGS, TOADS, NEWTS, SALAMANDERSectothermic vertebrates.skin is either smooth (like a frog) or rough (like a toad).dependent upon moisture and subject to desiccation; their skin must remain moist to aid in breathinglay eggs in water, which hatch into an intermediate life form (tadpole or larva) that usually breathes with gills, and change into the adult form that breathes air and can live outside water. three-chambered hearts.lack claws on their toes.

frog

Cane toad

NEWT

RED SPOTTED NEWT

SALAMANDER

REPTILESSnakes, lizards, turtles, gatorsectothermic vertebrates. skin has scales, but no hair or feathers.three-chambered hearts (except for alligators and crocodiles, which have four-chambered hearts).claws on their toes first animals, in evolution, to develop the amniotic egg. This allows reptiles to lay eggs on land.

Amnionic Egg (shelled egg)

copperhead

rattlesnakes

Pygmy rattlesnake

BIRDSendothermic vertebrates.skin is covered with feathers. four-chambered hearts.bones are lightweight and usually hollow.forelimbs are modified as wings. lay eggs.

MAMMALSendothermic vertebrates.Body covered with hair, which varies greatly among species.Most have sudoriferus (sweat) glands.have mammary (milk-secreting) glands.sebaceous (fat-secreting) glands.have heterodont dentition (different types of teeth).

Egg laying mammals

Pouched Mammals