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BIO 152 LAB 2 PRACTICAL ASSESSMENT 2026 COMPLETE QUESTIONS AND CORRECT ANSWERS 100% VERIFIED

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BIO 152 LAB 2 PRACTICAL ASSESSMENT 2026 COMPLETE QUESTIONS AND CORRECT ANSWERS 100% VERIFIED

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BIO 152
Course
BIO 152

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BIO 152 LAB 2 PRACTICAL ASSESSMENT 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS 100% VERIFIED

◉ Porifera symmetry. Answer: Asymmetrical, some radial


◉ Porifera tissue layers and coelom. Answer: 0-1, acoelomate


◉ Porifera development. Answer: Neither - no embryonic tissue


◉ Porifera digestive system. Answer: No digestive cavity -
intracellular digestion


◉ Spicules. Answer: Hard sponge skeleton - made of silica or
calcium carbonate


◉ Spongin. Answer: Soft/flexible sponge skeleton - made of protein
fiber


◉ Cnidaria. Answer: Jellyfish, anemones, corals, hydra...!


◉ Cnidaria symmetry. Answer: Radial

, ◉ Cnidaria tissue layers, coelom. Answer: Diploblastic (ectoderm +
endoderm), acoelomate


◉ Cnidaria development. Answer: Neither


◉ Cnidaria digestive system. Answer: Incomplete - gastrovascular
cavity (one opening)


◉ Cnidocytes. Answer: Stinging cells


◉ Mesoglea. Answer: Gel layer between tissues


◉ Two cnidaria forms:. Answer: Polyp (sessile), medusa (free
swimming)


◉ Platyhelminthes. Answer: Flatworms!


◉ Platyhelminthes symmetry. Answer: Bilateral


◉ Platyhelminthes tissue layers, coelom. Answer: Triploblastic,
acoelomate
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