Unit 1 - Phylum Flashcards
Phylum with asymmetrical body, no tissues, and filter feeding
Porifera (Sponges)
Phylum with stinging cells (cnidocytes), radial symmetry, and polyp/medusa forms
Cnidaria (Jellyfish, Corals, Sea Anemones)
Flatworms with bilateral symmetry, a gastrovascular cavity, and no coelom
Platyhelminthes (Flatworms, Tapeworms, Flukes)
Tiny pseudocoelomates with a complete digestive system, some reproduce by parthenogenesis
Rotifera (Rotifers)
Roundworms with a pseudocoelom, a complete digestive tract, and some are parasites
Nematoda (Roundworms, Heartworms)
Soft-bodied animals with a muscular foot, visceral mass, and mantle
Mollusca (Snails, Clams, Octopuses)
Segmented worms with a true coelom, closed circulatory system, and bristles called setae
Annelida (Earthworms, Leeches, Polychaetes)
Animals with jointed legs, segmented bodies, and an exoskeleton made of chitin
Arthropoda (Insects, Spiders, Crustaceans)
Marine invertebrates with spiny skin, tube feet, and radial symmetry as adults
Echinodermata (Sea Stars, Sea Urchins, Sea Cucumbers)
Phylum that includes both invertebrates and vertebrates, with a dorsal nerve cord
Chordata (Lancelets, Tunicates, Vertebrates)
Phylum with water vascular system for movement and feeding
Echinodermata
Only phylum with an exoskeleton made of chitin
Arthropoda
Class of Mollusca known for having tentacles and high intelligence
Cephalopoda (Octopuses, Squid)
Phylum that includes segmented worms with a closed circulatory system
Annelida
Phylum that includes parasitic flatworms like tapeworms and flukes
Platyhelminthes
Phylum where some species can reproduce without males via parthenogenesis
Rotifera
Phylum where all members have cnidocytes, or stinging cells
Cnidaria
The only phylum that includes vertebrates
Chordata
A phylum where the adult form has radial symmetry but the larval stage is bilateral
Echinodermata
This phylum includes arthropods like insects, crustaceans, and arachnids
Arthropoda
This phylum has an incomplete digestive system with only one opening
Platyhelminthes
This phylum includes filter feeders with no true tissues
Porifera
This phylum includes bivalves, gastropods, and cephalopods
Mollusca
This phylum contains the largest number of species of all animals
Arthropoda
