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1. What directional term is given to the anatomical positions pictured below?

Learn about directional terms, types of symmetry, stages of animal development, cell differentiation, water flow in sponges, reproduction in sponges, classification based on body types and feeding methods, identification of structures and organisms, functions of cells, characteristics of phylum, and more.

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1. What directional term is given to the anatomical positions pictured below?

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  1. 1. What directional term is given to the anatomical positions pictured below? B C A D

  2. 2. What type of symmetry does each of the following organisms have? C A B

  3. 3. Name the three stages of animal development (1, 2, 3) pictured below. 1 3 2

  4. 4. The gastrula differentiates into 3 layers of cells. What types of cells does each layer give rise to? ___Ectoderm ___Mesoderm ___Endoderm • Skeleton and muscle cells • b. Skin and sense cells • c. Digestive and respiratory cells

  5. 5 5. Describe the path of water flow (enter/ exit) in a sponge.

  6. 6. List 4 ways a sponge can reproduce.

  7. 7. Which cell in the sponge wall digests the food? • Spicule • Spongin • Amoebocyte • Mesoglea

  8. 8. Sponges are classified based on ____. • a. Body types • b. Composition of skeleton • c. Reproductive differences • d. Methods of feeding

  9. 9. Identify the structures below.

  10. 10. Name the phylum of these organisms.

  11. 11. By which method do sponges obtain their food? • Capture with tentacles • Exocytosis • Filter feed • Budding

  12. 12. What substance makes up the shape of this organism?

  13. 13. Identify each cell. A. B.

  14. 14. Give 1 function of each cell. A. B.

  15. 15. Name the phylum of these organisms. 16. Name the 2 main characteristics organisms of this phylum have in common. 17. Name the body type of each. A B

  16. 18. What types of cells line the tentacles of a cnidarian?

  17. 19. What is the harpoon found inside a stinging cell called?

  18. 20. a. Give the name of this organism. b. Identify the structure (arrow).

  19. 21. This organism produces 2 different polyps. What is the function of each? A. B.

  20. 22. a. Name the body form of this organism. b. This organism is sessile. Define sessile.

  21. 23. Cnidarians have true tissues. • (endoderm,ectoderm,mesoderm) • Name the tissue represented by red. • Name the tissue represented by blue. • Name the cavity with arrow.

  22. 24. Choose: Porifera Cnidaria Both • Respiration by diffusion • Nerve cells • Gastrovascular Cavity • Specialized cells, lack tissues • One opening (mouth/anus) • Sexual and asexual reproduction • Invertebrate • Produce gemmules during harsh conditions • Blastula/ gastrula stage of developement

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