EXAM STUDY MATERIALS July 26, 2024 9:30 AM BIO 182 LAB FINAL Exam Questions With Correct Answers Phylum Porifera Characteristics - answer✔✔- sponges - considered the basal animal - sessile animals - lack true tissues -filter feeders -hermaphrodites phylum Cnidaria characteristics - answer✔✔- have true tissues -gastrovascular cavity -ring of tentacles with cnidocytes to capture pr ey - polys and medusa phylum Platyhelminthes - answer✔✔flatworms -dorsoventrally flattened bodies - Flat shape increases surface area for nutrient, gas, and waste exchange - Found in marine, freshwater, and damp terrestrial habitats - Schistosomiasis is a disease from trematodes that causes pain, anemia, and diarrhea phylum Annelida - answer✔✔- segmented worms -found in salt water and fresh water and damp soil Two main groups: -Errantians: well developed head, parapodia with chaetae -Sedentarians: reduced head, no parapoida phylum Mollusca - answer✔✔- Have 3 main body parts: Muscular foot, visceral mass, and a mantle - clade polyplacophora (chitons) EXAM STUDY MATERIALS July 26, 2024 9:30 AM -clade gastropoda -clade bivalvia - clade cephalopoda phylum Nematoda - answer✔✔roundw orms - aquatic habitats, in the soil, in the moist tissue of plants, and in the body fluid and tissue of animals - These are free -living worms that are involved in decomposition and nutrient recycling - Many are parasites of both plants and animals - Trich inella spiralis phylum Arthropoda - answer✔✔- found in every habitat - Possess jointed, paired appendages that are modified for walking, feeding, sensory reception, reproduction, and defense phylum Echinodermata - answer✔✔-Radially symmetrical as adults; bilaterally symmetrical as juveniles -Unique water vascular system for movement and feeding -5 part body organization Identify and classify specimen - answer✔✔ Glass sponge (Leucosolenia) - answer✔✔Porifera Sheep's Wool Sponge - answer✔✔Porifera Hard Hea d Sponge - answer✔✔Porifera yellow sponge - answer✔✔Porifera Portuguese man o war - answer✔✔Cnidaria corals and sea fans (anemones) - answer✔✔Cnidaria Ascaris summ (pig roundworm) - answer✔✔Nematode Hirudinea leeches - answer✔✔Annelida Diplydium caninum (cucumber tapeworm) - answer✔✔Platyhelminthes
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