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Bio 183 unit 4
Invertebrates
| Question | Answer |
|---|---|
| Kingdom Animalia | -members are multicellular and heterotrophs -diverse array of feeding styles -two major types: invertebrates/vertebrates |
| Phylum Porifera | the sponges "pore bearers" |
| Phylum Mollusca | snails, clams, octopus, squid, chitons |
| Phylum Platyhelminthes | flatworms |
| Phylum Annelida | Segmented worms |
| Phylum Nemertera | Ribbon worms |
| Phylum Cnidaria | sea anemones, jellies, corals |
| Phylum Nemotoda | roundworms |
| Sponges (1) | members pf Phylum Porifera structurally simplest of invertebrates complex aggregations of specialized cells |
| Sponges (2) | cellular level of organization (no tissues etc) no symmetry, sessile water enters, pores/ostia and circulates through canals and flexible skeletal framework where food is filtered and eaten |
| Suspension Feeder | feeing style where animals eat food particles suspended in the water organisms that actively filter food particles from the water by pumping water through their bodies or using filtering structures to sweet up food particles are known as filter feeders |
| Passive Suspension Feeder | occurs when water is not actively pumped(but passively flows by the animal) and the animal uses cilia and mucus to move food particles to the mouth |
| Filter Feeder | Organisms that actively filter food particles from the water by pumping water through their bodies or using filtering structures to sweep up food |
| Sessile | organisms attached to the bottom or a surface |
| Tissues | are specialized, coordinated groups of cells in an organism. |
| Organ | are structures consisting of several types of tissues, grouped together to carry out particular functions. |
| Organ Systems | are groups of organs that work together to perform a particular function in an organism. |
| Sponges Feeding Style | water is pumped through pores into feeding champers that are lined with feeding cells called collar cells Water leaves the sponge though a large openings called oscula |
| Collar Cells | have flagella that create currents and a thing collar that traps food particles, which are then ingested |
| Spicules | supporting structures in sponges of different shapes and sizes that are embedded in a gelatinous layer between the outer and inner layers of cells in the sponge. may be siliceous or calcareous. |
| Silecerous | is an adjective that refers to things made up of silica (SiO2). |
| Calcareous | is an adjective that refers to things made up of calcium carbonate (CaCO3) |
Created by:
Mercenary_Jane
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