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BIO 100 Exam 3 2025 Questions and Answers Sponge - ....ANSWER☑️☑️...-I am a simple, asymmetrical animal that is almost entirely marine Cnidarian - ....ANSWER☑️☑️...-I have both polyp and medusa body forms Flatworm - ....ANSWER☑️☑️...-I'm a trematode parasite Annelida - ....ANSWER☑️☑️...-Chitinous hairlike extensions, anchored in the skin and projecting from the cuticle, called chaetae, are present in every segment in most of my groups Echinoderm - ....ANSWER☑️☑️...-I have a water vascular system and tube feet Chordate - ....ANSWER☑️☑️...-I have a notochord Arthropoda - ....ANSWER☑️☑️...-the phylum to which jointed-legged invertebrates belong, including insects, arachnids and crustaceans Nematode - ....ANSWER☑️☑️...-Round worms. The first animals to have a full digestive tract (2 openings). Mollusca - ....ANSWER☑️☑️...-(snails, clams, squids, octopuses) have a soft body that in many species is protected by a hard shell What does the parasite, Euhaplorchis californiensis, found in the Carpinteria Salt Marsh do to infected fish? - ....ANSWER☑️☑️...-Makes them much more likely to be eaten by a bird FOR STUDY PURPOSES ONLY, ©️2025 ALL RIGHTS RESERVED 1