B) trochophore C) planula D) veliger E) oligophore 6 Unlike other animals, spong
ID: 132763 • Letter: B
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B) trochophore C) planula D) veliger E) oligophore 6 Unlike other animals, spongesB. possess cell walls A. are unicellular D ahe bianen mamery C. lack true tissues E. are prokaryotic. 17. Animals are: A. multicellular eukaryotic heterotrophs B. unicellular eukaryotic heterotrophs C. multicellular prokaryotic heterotrophs D. mticellular eukaryotic autotrophs E. unicellular prokaryotic heterotrophs 8. Acoclomates are a the absence of a brain. b. the absence of mesoderm c deuterostome development. d. a coelom that is not completely lined with mesoderm e a solid body without a cavity surrounding internal organs. endoderm can give rise to tomesoderm .the outer covering of the animal a9)Ectoderm can give me to??; mesoderm can give rise to . can give rise toendoderm can give rise to the central nervous system mascle b. te lining of the digestive tract... muscl. ..the outer covering of the animal c. the central nervous system .. . the outer covering of the animal the lining of the d.mscle . the outer covering of the animal the lining of the digestive tube ete central nervous system... muscle.. the lining of the digestive tube digestive tube A pseudocelonate animal is one in which the body aviy is, a. bounded completely by mesoderm - filled by a solid mass of mesoderm ounded completely by endoderm d. bounded partly by ectoderm e. bounded partly by mesoderm One of the two taxa that molecular studies divide the protostomes into is called Ecdysozoa. What characteristic is this taxon named for? a. a horseshoe-shaped crown of ciliated tentacles b. a trochophore larva c. the secretion of stiff extermal skeletons that must be shed to allow for growth d. segmented bodies A water vascular system can be found in b. insects c. crustaceans d. echinodermsExplanation / Answer
16. Unlike other animals the sponges generally lack the true tissue. As they have cellular level of organization.
17 animals are multicellular eukaryotes which ar heterotrophs.
18. Acoelomates are characterized by the solid body without the coleom as they lack the coelom.
19. Ectoderm give rise to the central nervous system, mesoderm gives rise to the muscles and endoderm gives rise to the inner lining of the digestive tract.
22. Water vascular system is present in the Echinoderms.
And it is the characteratic feature of the echinoderm.
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