Calcarea, Silicea, and Cnidaria
Platyhelminthes and Nematoda
Mollusca and Annelida
Arthropoda
Echinodermata and Chordata
100
Sponges lack this with makes them oddballs in the animal phylum
What is no true tissue
100
Are the 3 layers of tissues
What is ectoderm, mesoderm, endoderm
100
The type of circulatory system a mollusks has
What is an open circulatory system
100
Organisms that feed on decaying plant matter
What are detritivores
100
An example of an echinoderm
What is a sea urchin, sand dollar, sea lily, sea cucumber, sea star
200
Stinging cells possessed by Cnidarains
What are cnidocytes
200
An integument
What is any external covering of an animal
200
The type of circulatory system an annelid has
What is a closed circulatory system
200
The major feeding appendage of arthropods
What are the chelicerae
200
An organism that starts life as a bilateral organism but develops radial symmetry.
What is secondary radial symmetry
300
Are specialized collar cells that create the water current in sponges
What are choanocytes
300
The opening to the archenteron
What is the blastopore
300
The setae
What are still bristles projecting from the body of annelids that aid in movement and gripping the substrate
300
Are anterior to the walking legs and used as tactile organs or for reproduction
What are pedipalps
300
Means "second opening"
What is deuterostomes
400
A digestive system with only one opening, the mouth
What is an incomplete digestive system
400
Platyhelminthes are the first to posses this system
What is an excretory system
400
Twisting in the bodies of gastropods
What is torsion
400
The 3 respiratory systems
What is 1.book lungs 2.book gills 3.tracheal system
400
Provides hydraulic pressure to move the tube feet in echinoderms
What is the water vascular system
500
Are the two body forms of Cnidarians
What is polyp and medusa
500
Are the 2 main advantages of a coelom
What is 1.freedom of movement for internal organs 2.protection against physical damage due to cushioning effect of fluid
500
The 3 defining features of mollusks
What is 1.a muscular foot 2.a radula 3.a mantle
500
The 3 features of the body of an arthropod
What is 1.exoskeleton 2.segmented body 3.jointed appendages
500
The 4 shared features of chordates
What are 1.a dorsal hollow nerve cord 2.notochord 3.pharyngeal gill slits 4.postanal tail
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