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Kendahl Ross

Blume Ch 12.2

Sponges have little in common with other animals- probably ______ separately from all other animals evolved
Most sponges are asymmetrical and _____ Sessile
A sponge body is a hollow ____ with one opening at the top and many small pores along the body tube tube
Sponges have no tissues, organs, or organ systems; they often do have ____ or ____ for protection and support Sticules Spongin
Sponges pull microscopic food particles and oxygen in through their ___; wastes are removed through the opening at the top of the sponge pores
Most sponges are _______ that produce both sperm and eggs, though sponges cannot fertilize their own eggs; sponges can also produce asexually by budding or regeneration hermaphrodites
_______ are invertebrates that include corals, sea anemones, jellyfish, hydras, and Portuguese man-of-wars Cnidarians
Most cnidarians live in ____ water; some live as individuals, while others live in colonies salt
Most cnidarians have two body _____ forms
The POLYP is ____-shaped and sessile vase
The ______ is bell-shaped and free-swimming MEDUSA
Cnidarians have one body opening and ______ symmetry radial
Two cell layers are arranged into ______; a digestive cavity breaks down food tissue
A _____ net carries impulses and connects all organism parts nerve
Most cnidarians have _________ with stinging cells to help capture food tentacles
Cnidarians are _________ predators
Cnidarians ________ both sexually and asexually reproduce
Cnidarians have existed more than 600 million years; most of their fossils are ______ corals
Coral reefs form as corals secrete their hard external _________ on those of earlier generations skeletons
Coral Reefs are _______ ecosystems that protect shorelines from erosion diverse
Coral Reefs provide _________ such as shells, pearls, and chemicals for human medical uses resources
Created by: kendahl