"What are the major phyla in Lophotrochozoa?"
"Platyhelminthes, Mollusca, Annelida, Rotifera"
"What body form do Platyhelminthes have?"
"Very thin body form, Acoelomates"
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"What are the major phyla in Lophotrochozoa?"
"Platyhelminthes, Mollusca, Annelida, Rotifera"
"What body form do Platyhelminthes have?"
"Very thin body form, Acoelomates"
"What are examples of Platyhelminthes?"
"Flukes, tapeworms, planarians"
"What environments do Platyhelminthes live in?"
"Marine, freshwater, moist terrestrial"
"What are the three major classes of Mollusca?"
"Gastropoda, Bivalvia, Cephalopoda"
"What organisms belong to Gastropoda?"
"Limpets, snails, slugs"
"What are the defining features of Bivalvia?"
"Two shells hinged together, no radula, no distinct head"
"What are examples of Cephalopoda?"
"Squids, octopuses, cuttlefishes, chambered nautilus"
"What circulatory system do Cephalopoda have?"
"Closed circulatory system"
"What is the unique defense mechanism of Cephalopoda?"
"Ink ejection from siphon"
"What is the purpose of chromophores in Cephalopoda?"
"Camouflage and communication"
"What body structure characterizes Annelida?"
"Segmented body"
"How do Annelids achieve locomotion?"
"Coelomic fluid creates hydrostatic skeleton, alternating muscle contractions"
"What are the two major classes of Annelida?"
"Polychaeta, Clitellata"
"What is the main feature of Clitellata?"
"Clitellum used for egg deposition"
"What are Rotifera known for?"
"Corona with cilia used for locomotion and feeding"
"What environments are Rotifera found in?"
"Freshwater mostly"
"What is the key feature of Ecdysozoa?"
"Molting of cuticle"
"What are examples of Nematoda?"
"Vinegar eels, eelworms"
"What are the main characteristics of Arthropods?"
"Segmentation, exoskeleton of chitin, jointed appendages"
"What type of circulatory system do Arthropods have?"
"Open circulatory system"
"What are the major subgroups of Arthropods?"
"Chelicerata, Mandibulata, Myriopoda, Hexapoda"
"What are examples of Chelicerata?"
"Spiders, ticks, mites"
"What distinguishes Mandibulata?"
"Mandibles for feeding"
"What are examples of Hexapoda?"
"Insects"
"What is the life history of insects?"
"Metamorphosis"
"What distinguishes Chilopoda from Myriopoda?"
"Chilopoda are centipedes (carnivores), Myriopoda are millipedes (herbivores)"
"What symmetry do adult Echinoderms have?"
"Pentaradial symmetry"
"What are the five classes of Echinodermata?"
"Asteroidea, Echinoidea, Ophiuroidea, Crinoidea, Holothuroidea"
"What are the four key characteristics of Chordata?"
"Notochord, dorsal nerve chord, gill slits, post-anal tail"
"What are the three subphyla of Chordata?"
"Urochordata, Cephalochordata, Vertebrata"
"What is the evolutionary significance of Tiktaalik?"
"Transitionary form between fish and early tetrapods"
"What are the three groups of Amphibians?"
"Anurans (frogs), Urodeles (salamanders), Apoda (caecilians)"
"What are the two major groups of Amniotes?"
"Synapsids (mammals) and Diapsids (reptiles, birds)"
"What are the three subclasses of Mammals?"
"Prototheria (monotremes), Marsupials, Placentals"
"What are examples of Archosaurs?"
"Crocodilians, dinosaurs, birds"
"What is the evolutionary link between birds and dinosaurs?"
"Theropod dinosaurs share skeletal features with birds"