Sponges and Cnidarians
Monopolistic, asymmetrical, simple sessile animals that live in the ocean. Spicules give them structure. Sponges are part of this phylum.
What is the phylum Porifera?
Clade of animals that all have bilateral symmetry
What are the bilaterians?
What clade of protostomes comes from the name of the structures lophophore and trochophore?
What are the lophotrochozoans?
Pseudocoelomates, tiny animals that have a complete gut. One group contained only females
What is Phylum Rotifera?
What are the three structures that all the clades in this phylum have? Bonus if you give a short definition
What is the foot (a muscular structure), a visceral mass (contains the heart, digestive, excretory, and reproductive organs), and a mantle (tissue layer that secretes the shell)?
Diploblastic: 2 layers separated by gelatinous mesoglea. Named for ctenes. Comb jellies are part of this.
What is Phylum Ctenophora?
Diploblastic, radial symmetry, and a gastrovascular cavity. Includes jellyfish, sea anemones, and corals.
What is the phylum Cnidaria?
The moss animals, where individuals are called "zooids"
What is Phylum Bryozoa?
Suckers on both ends of the body hat are used for movement and attaching to hosts. The leeches
Snails and slugs
What is the Class Gastropoda?
Diploblastic and asymmetrical. They are simplistic with no mouth, gut, or nervous system.
What is Phylum Placozoa?
Spiral cleavage, bilateral symmetry (and cephalization), triploblastic development, ventral nervous system, and the first opening becomes the mouth
What are protostomes?
Marine animals with a shell in two parts. Looks like bivalves (mollusks)
What is phylum brachiopoda?
Has bristles called "setae" to help with movement without slipping backwards. They ingest as they burrow and are hermaphroditic. Includes earthworms
What is the Subclass Oligochaeta?
Mussels, oysters, and clams
What is the Class Bivalvia?
Specialized flagellated feeding cells that line the internal cavity
What are choanocytes?
What structure is a feeding structure with a ring of tentacles around the mouth?
What is a lophophore?
Acoelomate and lack an oxygen transport system, so they're small and flat for gas exchange. AKA flatworms
What is Phylum Platyhelminthes?
Protostomes are triploblastic, meaning they have what?
What are the three tissue layers in embryos (ectoderm, endoderm, and mesoderm)?
Chitons their shells made of 8 plates which cover the whole animal when attached to rocks, etc.
What is the Class Polyplacophora?
What are the three distinct stages of the cnidarian life cycle in order?
What are Planula (free-swimming larva), Polyp (sessile stage), and Medusa (free-floating, bell-shaped stage)?
What is the name of the larval stage with cilia for movement?
What is trochophore?
Coelomates and segmentation allows for more controlled movement
What is Phylum Annelida?
Concentration of sensory organs at the anterior end
What is cephalization?
Squid, octopus, and nautilus
What is the Class Cephalopoda?