Biology 1102
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Transcript of Biology 1102
![Page 1: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/1.jpg)
Biology 1102
Lecture 5
![Page 2: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/2.jpg)
Slide 2 - Coelomates
![Page 3: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/3.jpg)
Slide 3 – Fertilizing an egg
![Page 4: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/4.jpg)
Slide 4 – Formation of the blastomere
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Slide 6 - Blastula
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Slide 14 - Gastulation
![Page 7: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/7.jpg)
Slide 7 - Gastrulation
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Slide 16 - Neurulation
![Page 9: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/9.jpg)
Slide 17 – radial and spiral cleavage
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Slide 10 – Cleavage patterns
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Slide 11 – Protostome and deuterostome body plan
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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
![Page 13: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/13.jpg)
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
![Page 14: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/14.jpg)
Slide 20 - Mollusca
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Slide 21 – Molluscs – internal structure
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Slide 22 – Molluscs - bivalves
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Slide 23 – Molluscs - cephalopods
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Slide 18 – Giant squid
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Slide 17 – Molluscs - gastropods
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Slide 20 – Segmented worms
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Slide 18 – Phylum Annelida – Class Polychaeta
![Page 22: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/22.jpg)
Slide 18 – Phylum Annelida – class Oligochaeta
![Page 23: Biology 1102](https://reader035.fdocuments.net/reader035/viewer/2022062304/568138d7550346895da08f80/html5/thumbnails/23.jpg)
Slide 20 - Phylum Annelida – Class Hirudinea