1 / 15

Animal Characteristics

Animal Characteristics. Multicellular, heterotrophic eukaryotes No cell walls Nervous & muscle tissue present in most Sexual reproduction, diploid life cycle is dominant All have similar developmental stages. Our Ancestor. Sessile, her maphroditic, regenration. mesoderm. Ectoderm.

simone
Télécharger la présentation

Animal Characteristics

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. Animal Characteristics • Multicellular, heterotrophic eukaryotes • No cell walls • Nervous & muscle tissue present in most • Sexual reproduction, diploid life cycle is dominant • All have similar developmental stages

  2. Our Ancestor

  3. Sessile, her maphroditic, regenration mesoderm Ectoderm

  4. Porifera • No true tissues • Choanocytes • Amoebacytes • Sessile • Reproduction

  5. Cnidaria • Jellyfish,hydra • Gastrovascular cavity • Nerve net • cnidocytes • Medusa/polyp

  6. Platyhelminthes-flatworms Planarians, tapeworms Protonephridia Clear CNS Eye spots Nematoda Roundworms Trichinella C.elegans

  7. Mollusca • Gastropoda, bivalvia • Radula • Muscular foot, visceral mass, mantle • Complete dig., open circulatory • Cephalopoda(squid) • Closed circ., well developed senses, intelligent

  8. Annelida • Segmented worms • Closed circ., complete dig. • Metanephridia(excretion)

  9. Arthropoda • Insecta(terrestrial), crustacea(marine) • Exoskeleton, molting, compound eyes, • Malphigian tubules • Spiracle/tracheae

  10. Echinoderms • Seastars • Tube feet • Water vascular system • Deuterostomes • Radial symmetry • Nerve nets

  11. Chordata • Notohord-precursor to vertebrae

  12. Subphylum-vertebrates • All have • Vertebral column • Closed circulation • cephalization

  13. Chondrichthyes • Osteichthyes • Amphibia • Reptile • Aves(birds)

  14. mammals • Characteristics • Mammary glands (milk) • Hair • Endothermic • Well developed respiratory & circulatory systems • Internal fertilization • Monotremes(egg laying) • Marsupials(pouches) • Placental

More Related