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Classification Presentation. Introduction. Basic Information Morphological Characteristics Nutrition Reproduction Example Cool Facts. Platyhelminthes Rotifera Nematoda Nemertea. Platyhelminthes. Basic Information. Platyhelminthes (Scientific name) Flatworms (Common name).

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Presentation Transcript
introduction
Introduction
  • Basic Information
  • Morphological Characteristics
  • Nutrition
  • Reproduction
  • Example
  • Cool Facts
  • Platyhelminthes
  • Rotifera
  • Nematoda
  • Nemertea
basic information
Basic Information
  • Platyhelminthes (Scientific name)
  • Flatworms (Common name)
  • Most are in marine, freshwater, and moist terrestrial habitats
  • Few are parasitic
morphological characteristics
Morphological Characteristics
  • Bilateral symmetry
  • Triploblastic
  • Respire by Diffusion
  • Invertebrate
  • Acoelomate
  • Incomplete Digestive system
  • Excretory system
  • Protonephridia
nutrition
Nutrition
  • Free-living:

-Carnivores

-Scavengers

  • Parasites:

-Blood

-Tissue fluids

-Pieces of cells

reproduction
Reproduction
  • Hermaphrodites
  • Asexual Reproduction
example
Example
  • Class: Cestoda
  • Parasite
  • Live in digestive track of vertebrate
  • Taeniasaginata
  • Beef tapeworm
basic information1
Basic Information
  • Rotifera(Scientific name)
  • Wheel Animal (Common name)
  • Microscopic

Animal

  • Live in moist area
morphological characteristics1
Morphological Characteristics
  • Multicellular
  • Mostly soft body
  • Cuticle
  • Cement gland
  • Not Segmented
  • Complete Digestive System
  • Cryptobiosis
  • Pseudocelom
nutrition1
Nutrition
  • Primarily Omnivorous
    • Filter food from water
    • Eat dead or decomposing organic materials
reproduction1
Reproduction
  • Parthenogenesis
  • Sexual Dimorphism
example1
Example
  • Class: Bdelloidea
  • Well-developed corona
  • Evolutionary role of sexual reproduction
  • Diversified into more than 300 species but are fairly similar to other sexually reproducing rotiferaspecies
basic information2
Basic Information
  • Nematoda (Scientific name)
  • Roundworms (Common name)
  • Most are parasitic
morphological characteristics2
Morphological Characteristics
  • Unique Epidermis
  • Invertebrate
  • Muscles are all aligned longitudinally
    • Little sensory apparatus
  • Bilateral symmetry
  • Pseudocoelom
  • Lack of cilia
  • Lack of respiratory system
  • Cryptobiosis
nutrition2
Nutrition
  • Carnivorous
  • Many terrestrial species feed on plant roots
  • Some eat dead organic material
example2
Example
  • Class: Secernentea
  • Parasitic
  • Ascaris lumbricoides
  • Giant roundworms
  • Infect human
  • Most common
basic information3
Basic Information
  • Nemertea (Scientific name)
  • Ribbon Worms (Common name)
    • More complicated and well developed than the seemingly similar flatworms
    • Most are marine
morphological characteristics3
Morphological Characteristics
  • Lack of specialized gas exchange structures
  • System of Blood Vessels
    • Proboscis
    • Rhynchocoel
    • Acoelomate
    • Complete digestive system
    • Well-developed nervous system
    • Highly flexible and contractible
nutrition3
Nutrition
  • Carnivorous
  • Hunt
reproduction3
Reproduction
  • Gonochoristic
  • Few terrestrial species are Hermaphroditic
  • No Permanent Gonads
  • Pilidium Larva
    • Desor and Iwata larvae
    • Most species can reproduce asexually by fragmentation, even multiple times
example3
Example
  • Class: Anopla
  • Lineus longissimus
  • Longest
  • Mucus contains a relatively strong neurotoxin
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