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Biology 1102

Biology 1102. Lecture 5. Slide 2 - Coelomates. Slide 3 – Fertilizing an egg. Slide 4 – Formation of the blastomere. Slide 6 - Blastula. Slide 14 - Gastulation. Slide 7 - Gastrulation. Slide 16 - Neurulation. Slide 17 – radial and spiral cleavage. Slide 10 – Cleavage patterns.

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Biology 1102

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  1. Biology 1102 Lecture 5

  2. Slide 2 - Coelomates

  3. Slide 3 – Fertilizing an egg

  4. Slide 4 – Formation of the blastomere

  5. Slide 6 - Blastula

  6. Slide 14 - Gastulation

  7. Slide 7 - Gastrulation

  8. Slide 16 - Neurulation

  9. Slide 17 – radial and spiral cleavage

  10. Slide 10 – Cleavage patterns

  11. Slide 11 – Protostome and deuterostome body plan

  12. Slide 18 – protosomes - schizocoelom The blastopore is the single opening of the archenteron and in protosomes, the blastopore forms the mouth. The development of the mesoderm in protosomes are called schizocoelom which is defined as the developing mesoderm rises from the area near the blastophore where division takes place forming the mesoderm

  13. Slide 19 – deuterostomes - enterocoelom In deuterosomes, the blastopore (single opening of the archenteron) forms the anus. The development of the mesoderm is called an enterocoelom which is defined as the developing mesoderm rises from a pair of mesodermal pouch from the primitive gut (endoderm). This pouch enlarges until they meet and fuse

  14. Slide 20 - Mollusca

  15. Slide 21 – Molluscs – internal structure

  16. Slide 22 – Molluscs - bivalves

  17. Slide 23 – Molluscs - cephalopods

  18. Slide 18 – Giant squid

  19. Slide 17 – Molluscs - gastropods

  20. Slide 20 – Segmented worms

  21. Slide 18 – Phylum Annelida – Class Polychaeta

  22. Slide 18 – Phylum Annelida – class Oligochaeta

  23. Slide 20 - Phylum Annelida – Class Hirudinea

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