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The Blazers Student #1, Student #2, and Student #3 LB144 F06

Comparative Biology. The Blazers Student #1, Student #2, and Student #3 LB144 F06. Comparative Development. Strongylocentrotus purpuratus Xenopus laevis Oryzias latipes. Sea Urchin. Unfertilized egg viewed at 400x magnification on compound microscope 0 hours live specimen. Sea Urchin.

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The Blazers Student #1, Student #2, and Student #3 LB144 F06

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  1. Comparative Biology The Blazers Student #1, Student #2, and Student #3 LB144 F06

  2. Comparative Development • Strongylocentrotus purpuratus • Xenopus laevis • Oryzias latipes

  3. Sea Urchin Unfertilized egg viewed at 400x magnification on compound microscope 0 hours live specimen

  4. Sea Urchin Sea Urchin eggs after fertilization Sea urchin blastula in motion

  5. Sea Urchin Vitelline Envelope Sperm Fertilized Egg viewed at 400x magnification on compound microscope 1 minute live specimen

  6. Sea Urchin 2 cell stage viewed at 400x magnification on compound microscope 1-3 hours live specimen

  7. Sea Urchin Blastocoel Early blastula viewed at 400x magnification on compound microscope 24 hours old Live specimen

  8. Sea Urchin Animal Pole Blastocoel Late blastula viewed at 400x magnification on compound microscope 48 hours live specimen

  9. Sea Urchin Blastopore Blastocoel Archenteron Animal plate Gastrula viewed at 400x magnification on compound microscope Prepared slide

  10. Sea Urchin Esophagus Intestine Mouth Stomach Oral arm Pluteus larva viewed at 400x magnification on compound microscope Prepared slide

  11. Xenopus Unsegmented egg viewed at 400x magnification on compound microscope Prepared slide

  12. Xenopus Pigmented cortex Blastocoel Egg cleavage viewed at 400x magnification on compound microscope Prepared slide

  13. Xenopus Vegetal Pole Blastocoel Animal Pole Blastula viewed at 400x magnification on compound microscope Prepared slide

  14. Xenopus Epidermis Neural Tube Midgut Notochord Coelem Neural Tube in Neurulation viewed at 400x magnification on compound microscope Prepared slide

  15. Xenopus Notochord Spinal cord Yolk endoderm Anus 7mm Embryo viewed at 100x magnification on compound microscope Prepared slide

  16. Xenopus Mouth Tail 10mm Larva viewed at 100x magnification on compound micrscope Prepared slide Details of this slide were not available

  17. Medaka Oil droplets Chorion membrane Germinal disk Elevated germinal disk viewed at 30x magnification on dissection mircroscope 30 minutes live specimen

  18. Medaka Oil drop Blastoderm Neural tube Late neurula stage viewed at 30x magnification on dissection microscope 24 hours live specimen

  19. Medaka Cilia Oil droplet Optic cup Optic lens Yolk sac Optic cup stage viewed at 30x magnification on dissection microscope 26 hours live specimen

  20. Medaka Oil drop Pigmented optic cup Optic lens Pectoral fin bud Yolk sac Retinal pigmentation viewed at 30x magnification on dissection microscope 2 days 6 hours live specimen

  21. Medaka Vitelline Vein Pectoral fin bud Yolk sac Pink blood stage viewed at 30x magnification on dissection microscope 3 hours live specimen

  22. Medaka Cilia Chromatocyte Optic lens Oil droplet Pre-hatching stage viewed at 30x magnification on dissection microscope 5 days live specimen

  23. Comparative Morphology • Sponge • Hydra • Planarian • Roundworm • Earthworm • Mussel • Crayfish • Grasshopper • Sea Star • Lancelet

  24. Phylum Classification • Porifera – Sponge • Cnidaria – Hydra • Platyhelminthes – Planarian • Nematoda – Roundworm • Annelida – Earthworm • Mollusca – Mussel • Arthropoda – Crayfish and Grasshopper • Echinodermata – Sea star • Chordata - Lancelet

  25. Sponge Radial canals Spongocoel Incurrent canal Ostium Cross-section view of sponge viewed at 32x magnification on compound microscope Prepared Slide

  26. Sponge Spongocoel Incurrent canal Radial canal Ostium Longitudinal section of sponge viewed at 32x magnification on compound microscope Prepared slide

  27. Sponge Spongin fibers Sponge tissue viewed at 32x magnification on compound microscope Prepared slide

  28. Hydra Mouth Tentacles Body column Anterior region of hydra viewed at 32x magnification on compound microscope Live specimen

  29. Hydra Tentacles Body column Basal disc Posterior region of hydra viewed at 32x magnification on compound microscope Live specimen

  30. Hyrda Tentacles Epidermis Mesoglea Gastrodermis Gastrovascular cavity Basal disc Longitudinal section of hydra viewed at 32x magnification on compound microscope Prepared slide

  31. Planarian Pharynx Eyespot Brain Auricle Anterior region of planarian viewed at 32x magnification on compound microscope Live specimen

  32. Planarian Dorsalventral muscles Intestine Gastrovascular cavity Adhesive gland Ventral nerve cord Epidermis Mid-section region of planarian viewed at 32x magnification on compound microscope Live specimen

  33. Planarian Pharynx Ventral nerve cord Mid-section of body viewed at 32x magnification on compound microscope Live specimen

  34. Roundworm Mouth Anterior region of roundworm viewed at 30x magnification on dissection microscope Preserved specimen

  35. Roundworm Pharynx Anterior region of pharynx viewed at 30x magnification on dissection microscope Preserved specimen

  36. Roundworm Intestine Ovaries Intestine viewed at 30x magnification on dissection microscope Preserved specimen

  37. Roundworm Oviduct Oviduct viewed at 20x magnification on dissection microscope Preserved specimen

  38. Roundworm Ovaries Ovaries viewed at 30x magnification on dissection microscope Preserved specimen

  39. Roundworm Y-shaped uterus Y-shaped uterus viewed at 30x magnification on dissection microscope Preserved specimen

  40. Roundworm Vulva Vulva viewed at 25x magnification on dissection microscope Preserved specimen

  41. Roundworm Pseudocoel Intestine Uterus Ovaries Epidermis Cuticle Female cross-section viewed at 32x magnification on compound microscope Prepared slide Longitudinal muscles

  42. Roundworm Longitudinal muscles Sperm Cuticle Intestine Ventral nerve cord Dorsal nerve cord Vas deferens Excretory canal Male cross-section viewed at 32x magnification on compound microscope Prepared slide

  43. Earthworm Mouth Prostomium Anterior region viewed at 30x magnification on dissection microscope Preserved specimen

  44. Earthworm Seminal vesicles Seminal vesicles viewed at 30x magnification on dissection microscope Preserved specimen

  45. Earthworm Hearts The five hearts viewed at 30x magnification on dissection microscope Preserved specimen

  46. Earthworm Pumping vessels Crop Gizzard Crop and gizzard viewed at 30x magnification on dissection microscope Preserved specimen

  47. Earthworm Dorsal blood vessel Pumping vessels Intestine Intestine and dorsal blood vessel viewed at 30x magnification on dissection microscope Preserved specimen

  48. Earthworm Ventral nerve cord Intestine Clitellum Ventral nerve cord viewed at 30x magnification on dissection microscope Preserved specimen

  49. Earthworm Circular muscles Epidermis Longitudinal muscles Intestine Coelom Cross section viewed at 32x magnification on compound microscope Prepared slide

  50. Earthworm Circular muscles Epidermis Longitudinal muscles Ventral nerve cord Intestine Coelom Cross section viewed at 32x magnification on compound microscope Prepared slide

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