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Download Biology I Study Guide Worms
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Biology I Study Guide Worms Flatworms Roundworms Segmented Worms Flatworm Study Guide Flatworms are members of the Phylum Platyhelminthes Planaria and Tapeworms are members of this phylum Flatworms are animals Flatworms have 3 layers of tissues •the ectoderm (outer layer that gives rise to nervous tissue and skin) •the endoderm (inner layer which gives rise to the gut lining) •the mesoderm (middle layer which gives rise to muscle, reproductive organs, and circulatory vessels) Flatworms have bilateral symmetry Flatworms exhibit cephalization (they have a distinct head region) Flatworms have internal organs Flatworms are acoelomate - they are solid and have no body cavity Flatworms are protostomes Flatworm Quiz Flatworm Quiz 1. Flatworms have 2 layers of tissues. True False 2. Flatworms have a mouth and anus. True False 3. Flatworms belong to Phylum Nematoda. True False 4. Flat worms have radial symmetry. True False 5. Most flatworms are coelomates. True False 6. Flatworms belong to the Kingdom Animalia True False 7. Flatworms are protostomes. True False 8. Flatworms are segmented. True False 9. Platyhelminthes have internal organs. True False 10. Flatworms are sessile. True False Back Roundworm Study Guide Roundworms are members of the Phylum Nematoda Roundworms are animals Roundworms have 3 layers of tissues •The ectoderm (gives rise to nervous tissue and skin) •The endoderm (gives rise to the gut lining) •The mesoderm (gives rise to muscle, reproductive organs, and circulatory vessels) Roundworms have both a mouth and an anus Roundworms are pseudocoelomates (the body cavity lies between the mesoderm and the endoderm) Roundworms have bilateral symmetry Roundworms reproduce sexually Many roundworms are parasitic Roundworm Quiz Roundworm Quiz 1. Roundworms have 2 layers of tissues. True False 2. Roundworms have a mouth and anus. True False 3. Roundworms belong to Phylum Nematoda. True False 4. Roundworms have radial symmetry. True False 5. Most roundworms are coelomates. True False 6. Roundworms belong to the Kingdom Animalia. True False 7. Roundworms are protostomes. True False 8. Roundworms are segmented. True False 9. Nematoda have internal organs. True False 10. Roundworms are sessile. True False Back Segmented Worm Study Guide Segmented worms belong to the Phylum Annelida. Segmented worms have 3 layers of tissues •the ectoderm (gives rise to nervous tissue and skin) •the endoderm (gives rise to the gut lining) •the mesoderm (gives rise to muscle, reproductive organs, and circulatory vessels) Earthworms are examples of segmented worms. Annelida are protostomes. Annelida have both a mouth and an anus. Annelida exhibit cephalization. Annelida are coelomates (have a body cavity that lies within the mesoderm). Annelida exhibit bilateral symmetry. Segmented worms are animals. Leeches are parasitic annelids. Most annelids reproduce sexually Segmented Worms Quiz Segmented Worm Quiz 1. Annelids have 2 layers of tissues. True False 2. Earthworms have a mouth and anus. True False 3. Earthworms belong to Phylum Nematoda. True False 4. Annelids have radial symmetry. True False 5. Most annelids are coelomates. True False 6. Leeches belong to the Kingdom Animalia True False 7. Annelids are protostomes. True False 8. Annelids are segmented. True False 9. Annelids have internal organs. True False 10. Some annelids help aerate and fertilize the soil. True False Back
