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Unit 2 so far..

Test your knowledge on animal body plans, evolution, and key phyla with this informative practice quiz. Learn about germ layers, symmetry types, feeding mechanisms, and more. Perfect for reviewing your understanding of animal biology concepts.

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Unit 2 so far..

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  1. Unit 2 so far.. A practice “quiz”

  2. #1 • Most animals produce exclusively _____ and the ___ stage is the most prominent

  3. #2 • Name the 3 germ layers and what each one will eventually give rise to

  4. #3 • Define diploblastic and triploblastic

  5. #4 • Which group of more ancient organisms do we consider to be the ancestor of animals?

  6. #5 • Describe the fate of the blastopore in protostomes and deuterostomes?

  7. #6 • What phylum do sponges belong to?

  8. #7 • Describe the mature sponge structure

  9. #8 • How do sponges trap food particles?

  10. #9 What phylum does this organism belong to?

  11. #10 • What kind of symmetry do Cnidarians exhibit?

  12. #11 • What are cnidocytes?

  13. #12 • Describe coral reproduction

  14. #13 • What phylum does this organism belong to?

  15. #14 • What phylum does this organism belong to?

  16. # 15 • Do members of phylum Annelida have a complete digestive system?

  17. Answer slide • # 1 – sexually, diploid • #2 – ectdoderm = epidermis and nervous tissue, mesoderm = circulatory system, muscles, and most other organs, endoderm = lining of the digestive tract • #3 – diploblastic = two germ layers; triploblastic = 3 germ layers • #4 – Choanoflagellates • #5 – Protostomes = becomes mouth, Deuterostomes = becomes anus • #6 – Porifera • #7 – consists of 2 layers of cells separated by a gelatinous region • # 8 - Choanocytes

  18. Answer slide • #9 – Phylum Cnidaria • #10 – Radial symmetry • #11 – A specialized type of cell found only in members of phylum Cnidaria. Have capabilities of injecting poison • #12 – Fertilization is external • #13 – Phylum Rotifera • #14 – Platyhelminthes • # 15 - YES

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