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A:
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A:
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- Which group of flatworms are primarily external parasites of fish? a. monogeneans b. trematodes c. cestodes d. turbellariansChoose the correct and give reasons for the same: Sycon (Scypha), Spongilla (Freshwater sponge) and Euspongia (Bathsponge) are examples of which Phylum?A. Coelenterata B. Platy helminthesC. Ctenophora D. PoriferaTaenia (Tapeworm), Fasciola (Liverfluke) are examples of which Phylum?A. Coelenterata B. PlatyhelminthesC. Annelida D. Arthropoda
- What class under Platyhelminthes contains proglottis ? a)Nematoda b) cestoda c) plasmodium d)flukesContrast the skeletons of hexacorallian and alcyonarian coralsCnidarians may exhibit an “alternation of generations” in their entire life cycle. Describe the “alternation of generations” using the life cycle of a hydrozoan, Obelia.
- The male copulatory organ of turbellarians is called aWhich Hymenoptera lives in secretThese differ from the other classes of sponges in that their cells are syncytial (multinucleate and only a few cells or even one cell can cover the entire skeleton) Hexactinellida Calcerea Demospongia Homescleromorpha
- The organism below belongs to phylum ______________. Porifera Arthropoda Cnidaria Mollusca"Stalked jellyfishes" belong to which class? A. Staurozoa B. Scyphozoa C. Anthozoa D.Hydrozoa E. CubozoaCnidocytes are found in _____. a. phylum Porifera b. phylum Nemertea c. phylum Nematoda d. phylum Cnidaria
