Lecture 2: Overview of Animal Diversity: Primitive Animals

    Cards (21)

    • Eubacteria: unicellular, prokaryotic.
    • Archea: unicellular, prokaryotic.
    • Protista: uni/multicellular, eukaryotic, photosynthetic.
    • Fungi: multicellular, heterotrophic, not mobile.
    • Plantae: multicellular, photosynthetic, not mobile.
    • Animalia: multicellular, heterotrophic, mobile.
    • Kingdom Animalia: Eukaryotic, multicellular, no cell walls, cell differentiation, sexual reproduction.
    • Body Symmetry: asymmetric, radial, bilateral.
    • Body cavities: acoelomates, coelomates, pseudocoelomates.
    • What does Phylum Porifera mean?
      pore bearing.
    • Phylum Porifera: aquatic, asymmetric, not true tissues/organs, mostly hermaphrodite.
    • what does phylum cnidaria mean?
      stinging
    • phylum cnidaria: aquaitc, radial symmetry, acoelomates, 2 cell layers.
    • examples of phylum cnidaria?
      jellyfish, corals, sea anemones.
    • coral reefs: form in shallow clear water near equator.
    • what does phylum Platyhelminthes mean?
      flat worms
    • phylum Platyhelminthes: free living aquatic or parasitic, bilateral, acoelomates, simple mouth.
    • adaptations for a parasitic life: size and shape (small, flat) and reduced sense organs.
    • adaptations for a parasitic life: attachment organs and respiration (anaerobic)
    • adaptations for a parasitic life?
      reproduction (asexual)
    • Advantages of infecting secondary and tertiary hosts: increased reproductive potential, increased range of the parasite in space and time.