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B platyhelminthes c annelida d arthropoda e nematoda

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Unformatted text preview: feeding appendages. A) chelicerae B) carapace C) proboscis D) jawed mandibles E) nauplius 24. A sea cucumber is a member of which class? A) Asteroidea B) Ophiuroidea C) Echinoidea D) Holothuroidea E) Crinoidea 25. Which of the following feature is NOT for insects? A) tracheal system D) uniramous mandibulates B) Malpighian tubules E) molting C) 4 pairs of segmented legs 26. About the lancelets, which of the following statement is incorrect? A) It has dorsal hollow nerve cord with gill slits B) It is in the phylum of Cephalochordata C) It has segmented myomere to make wavelike swimming movement D) It has no notochord. E) It has a post ­anal tail. 27. The leeches used by doctors to prevent blood clotting and stimulate blood vessel growth in patients recovering from reconstructive surgery are members of the phylum A) Cnidaria. B) Platyhelminthes. C) Annelida. D) Arthropoda. E) Nematoda. 28. The blastopore denotes the presence of an endoderm ­lined cavity in the developing embryo, a cavity that is known as the A) germ layer B) archenteron C) blastocoel D) blastula E) coelom 29. The members of which taxonomic group are best described as having a large, well ­developed brain, excellent vision, and being marine carnivorous predators? A) oligochaetes B) bivalves C) gastropods D) insects E) cephalopods 30. A sea spider is the representative of Class ____________, while a spider is the one of Class __________. A) Crustacea, Chilopoda D) Chilopoda, Diplopoda B) Myriapoda, Arachinida E) Pycnogonida, Arachnida C) Merostomata, Pycnogonida 31. What is this animal (with obvious head and antenna, 1 pair of legs per body segment)? A) Diplopoda B) Chilo...
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