Protostomes_protocol_with tree_v1_QV.docx - Brachiopod No...

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Brachiopod - No teeth on valves - Have setea Clam - 4 oversized gills - Two hinged valves Chiton - Has no segmented shell - Uses a radula to scrape algae off of rocks Coral - CaCO 3 exoskeleton - Can do sexual or asexual reproduction Crab - 1 set of pedipalps - 2 body regions Crawfish - Mandibles - 2 pairs of sensory antennae Earthworm - Few to no setae - Truly segmented Grasshopper - 3 pairs of walking legs - 2 pairs of wings Hydra Leech - Have clitellum - Closed circulatory system Millipede - Herbivorious - 2 pairs of legs per segment Obelia - Can be polyp and medusa - No brain or ganglia - Hydrostatic skeleton - Diploblastic
Planaria - Flat bodies - Hermaphroditic Polychaete - Each segment has a pair of parapodia - Bilateral symmety Snail - Trochophore larval stage - Open circulatory system Spider - 1 pair of Chelicerae - 4 pairs of legs Sponge - No true tissues - Choanocyte Squid - Have 3 hearts - 8 arms and 2 longer tentacles Tapeworm - Bilaterally symmetrical - Has suckers or hooks Vinegar Eel - Pseudocoelomate - Complete digestive tract
As science has progressed, the placement of different clades on phylogeny trees have been moved around. In this week’s lab, we found that the original ancestor for all of the Poriferans and Eumetazoans are called Choanoflagellata. Since this is the common ancestor, this

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