1 / 16

Subphylum Vertebrata

Subphylum Vertebrata. 7 Classes. A. Cold Blooded (ectotherms). Agnatha: (Jawless Fish) – lampreys, hagfishes Sucker mouth with sharp teeth. A. Cold Blooded (ectotherms). Chondrichthyes: (Hinged Jaw) – sharks, skates, rays Paired fins Detect vibrations in water.

ketan
Download Presentation

Subphylum Vertebrata

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Subphylum Vertebrata 7 Classes

  2. A. Cold Blooded (ectotherms) • Agnatha: (Jawless Fish) – lampreys, hagfishes • Sucker mouth with sharp teeth

  3. A. Cold Blooded (ectotherms) • Chondrichthyes: (Hinged Jaw) – sharks, skates, rays • Paired fins • Detect vibrations in water

  4. A. Cold Blooded (ectotherms) • Osteichthyes: (Bony Fish) • Skeleton of bones • Hard plate protects gills

  5. A. Cold Blooded (ectotherms) • Amphibia: (newts, frogs, toads) • 3 chambered heart; lungs • Live on land; return to water to reproduce • Metamorphosis – tadpoles to adults • 3 orders: Anura – frogs (smooth skin) and toads (bumpy skin) Caudata – salamanders and newts; neck, tail, long slender body Apoda – legless caecilians (wormlike bodies)

  6. A. Cold Blooded (ectotherms) • Reptilia: (turtles, snakes, lizards, crocodiles, and alligators) • Dry, scaly skin which prevents drying out • Clawed toes; four legs (except snakes) • Internal fertilization; lays amniotic eggs with leathery shell (prevents dehydration)

  7. B. Warm Blooded (endoderms) • Aves: (birds) • Feathers for flying and insulation • Strong, lightweight, hollow bones • Internal, sexual reproduction • Four chambered heart • High metabolic rate; need energy for flight and heat • Eat constantly to keep up metabolism

  8. B. Warm Blooded (endoderms) • Mammalia: • Feed young from mammary glands; hair to maintain body temperature • 4 chambered heart • Diaphragm for breathing • 3 groups by method of reproduction Monotremes – lay eggs Marsupials (kangaroos and opossum) – second developmental stage outside in pouch Placental – develop inside uterus

More Related