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10 Cards in this Set

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  • Back
Invertebrate
Animal without a backbone
Vertebrate
Animal with a backbone
Kingdom
Largest grouping in the organization of living things.
There are five kingdoms.
Phylum
The second breakdown in classification of animals. There are 9 phylums for animals.
Porifera
Simplest animals. Have many pores or tiny openings. Live attached to objects on the ocean floor.
Pores
Tiny openings or holes
filter feeder
Feeding method used by some animals in which microscopic organisms are "filtered" through the animal.
collar cells
They line the central cavity of the porifera.They remove food and oxygen from the water and release waste products
flagellum
Whip-like structures found on collar cells of prifera used to keep water moving throughout the animal.
spicules
Form the simple skeleton of sponges