Invertebrate Portfolio

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  • 1.Invertebrate Portfolio Portfolio Item 2

2. Portfolio Item 2

  • Invertebrate An animal that does not have a backbone.
  • Vertebrate Animals with an endoskeleton and a backbone.

3. Portfolio Item 2

  • Heterotroph An organism that must consume its food from an outside source because it cannot manufacture organic carbon compounds from an inorganic source.

4. Portfolio Item 3

  • Embryo Organisms early pre-birth stage of development.
  • Symmetry Balance or similarity in body structures of organisms.

5. Portfolio Item 3

  • Radial Symmetry Can be divided along any plane through a central axis into roughly equal halves.
  • Bilateral SymmetryCan be divided down its length into similar right and left halves that form mirror images of each other.

6. Portfolio Item 3

  • Asymmetrical Symmetry An animal that has no symmetry.

7. Portfolio Item 4

  • Endoderm Inner layer of cells in the gastrula that develops into digestive organs and the digestive tract lining.

8. Portfolio Item 4

  • Ectoderm An embryological tissue that forms the outer covering of the animals body.

9. Portfolio Item 4

  • Mesoderm An embryological tissue found between the ectoderm and endoderm that eventually differentiates into muscle.

10. Portfolio Item 4

  • Blastula A hollow ball of undifferentiated cells.

11. Portfolio Item 4

  • Gastrula Two-layer-cell sac with an opening at one end that forms from the blastula during embryonic development.
  • Differentiation The process in which identical cells start to develop and become specialized based on their eventual function in the organism.

12. Portfolio Item 4

  • Coelom A fluid filled body cavity that is lined with mesoderm on each side.
  • Psuedocoelom A body cavity that is not lined with mesoderm on each side.
  • Acoelomate Organisms that do not have a body cavity

13. Portfolio Item 4 14. Portfolio Item 5

  • Cnidarians have:
    • Radial Symmetry
    • Two true tissue layers:
      • Ectoderm
      • Endoderm

15. Portfolio Item 5

  • Cnidarians have:
    • Three classes: Examples:
    • Hydrozoa Hydra, Portugueseman-o-war
    • Scyphozoa Jellyfish, sea wasps
    • Anthozoa Coral, anemone

16. Portfolio Item 5

  • Cnidarians have:
    • Two body forms:
      • Polyp
      • Medusa

17. Portfolio Item 5

  • Cnidarians have:
    • Gastrovascular cavity that serves as:
      • Digestion
      • Circulatory System
      • Hydrostatic skeleton

18. Portfolio Item 5

  • Cnidarians have:
    • Possess tentacles with nematocysts used for:
      • Catching food
      • Defense

19. Portfolio Item 5 - Hydra 20. Portfolio Item 6 Nematoda and Platyhelminthes

  • Flatworms have a coelom - Disagree

21. Portfolio Item 6 Nematoda and Platyhelminthes

  • Flatworms chew their food with teeth - Disagree

22. Portfolio Item 6 Nematoda and Platyhelminthes

  • Flatworms have no nervous system - Disagree

23. Portfolio Item 6 Nematoda and Platyhelminthes

  • Roundworms have radial symmetry - Disagree

24. Portfolio Item 6 Nematoda and Platyhelminthes

  • Regeneration is a from of sexual reproduction - Disagree

25. Portfolio Item 6 Nematoda and Platyhelminthes

  • Some flatworms are parasitic - Agree

26. Portfolio Item 6 Nematoda and Platyhelminthes

  • Roundworms have a coelom agree and disagree

27. Portfolio Item 6 Nematoda and Platyhelminthes

  • Hookworms and pinworms can infect humans - Agree

28. Portfolio Item 6 Nematoda and Platyhelminthes

  • Roundworms can regenerate body parts that have been lost - Agree

29. Portfolio Item 6 Nematoda and Platyhelminthes

  • Three classes of Phylum Platyhelminthes:
    • Turbellaria
    • Trematoda
    • Cestoda

30. Portfolio Item 6 Nematoda and Platyhelminthes -Trichinella 31. Portfolio Item 8 Key Features of Arthropods 32. Portfolio Item 8 Key Features of Arthropods

  • Arthropods have an exoskeleton made of chitin (polysaccharide bound with protein)

33. Portfolio Item 8 Key Features of Arthropods

  • As arthropods grow, they shed their old exoskeleton in a process called molting.

34. Portfolio Item 8 Key Features of Arthropods

  • Arthropod appendages are jointed.

35. Portfolio Item 8 Key Features of Arthropods

  • Arthropods are like earthworms in that they have segmentation.

36. Portfolio Item 8 Key Features of Arthropods

  • Most arthropods have three major body regions called:
    • Thorax Middle
    • Abdomen Posterior
    • Cephalothorax Head
    • Some arthropods only have a abdomen and cephalothorax!

37. Portfolio Item 8 Key Features of Arthropods

  • Arthropods have several types of structures for obtaining oxygen:
    • Spiders have book lungs

38. Portfolio Item 8 Key Features of Arthropods

  • Arthropods have several types of structures for obtaining oxygen:
    • Insects have tracheal tubes

39. Portfolio Item 8 Key Features of Arthropods

  • Arthropods have several types of structures for obtaining oxygen:
    • Crustaceans have gills

40. Portfolio Item 8 Key Features of Arthropods

  • Some arthropods such as bees exhibit parthenogenesis which means that reproduction occurs without fertilization!

41. Portfolio Item 8 Key Features of Arthropods Three distinct body parts head, thorax, and abdomen and three pairs of legs. Bees, Beetles, Butterflies, Flies, and Grasshoppers Insecta Rounded bodies and two pairs of legs per body segment Millipedes Diplopoda Flat bodies and one pair of legs per body segment Centipedes Chilopoda Chewing jaws, and a pair of appendages on each segment of the thorax Crabs, Lobsters, and Shrimp Crustacea They have eight legs Spiders, Scorpions Arachnida Unique Features Example Name of Class 42. Biolab Dissection of a Grasshopper:External Anatomy Long wings used for flying. Forewing / hind wing Hearing organ. Tympanum Valve-like opening in exoskeleton used for air. Spiracles Perceives odor, touch, humidity, vibration, wind velocity and direction. Antennae Simple Detect light intensity, but cannot see.Compound Made of individual units call ommatidia.Sees shape, color, movement, and distance. Eyes: Simple / Compound Allows for jumping Has claws for clasping to objects. Legs Function Structure 43. Biolab Dissection of a Grasshopper:External Anatomy 44. Biolab Dissection of a Grasshopper:Internal Anatomy

  • Crop:Sac in which food is stored until it can make its way through the gizzard.

45. Biolab Dissection of a Grasshopper:Internal Anatomy

  • Gizzard:Muscular sac that contains hard particles that helps grind food before they pass into the intestine.

46. Biolab Dissection of a Grasshopper:Internal Anatomy

  • Gastric Caeca:Transports undigested food from the stomach to the intestine.
  • Intestine:Stores undigested material until it can be eliminated through the anus.

47. Biolab Dissection of a Grasshopper:Internal Anatomy

  • Malphigian Tubules:Waste excreting structure that also helps maintain homeostatic water balance.

48. Biolab Dissection of a Grasshopper

  • The eye of the grasshopper is composed of many independent lenses and retinas, giving the eye a faceted appearance.Nerve tissues, found in the head, assemble the multiple images into a single image.

49. Biolab Dissection of a Grasshopper

  • Compared with single-aperture eyes, compound eyes have poor image resolution; however, they possess a very large view angle and the ability to detect fast movement and, in some cases, the polarization of light.

50. Biolab Dissection of a Grasshopper

  • A grasshoppers ability to see is that of a single image with a 160 degree angle.

51. Biolab Dissection of a Grasshopper

  • The first two segments of the legs are ball and socket, which give the grasshopper a wide range of movement.
  • The bottom of the leg gives extra traction.
  • The first two pairs of legs are for crawling, clinging,