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Lab Practical II
Proifera and Cnidaria
23
Biology
Undergraduate 2
12/10/2007

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Term
Phylum Proifera (Reproduction?)
Definition
Sexual: Monecious (hermaphroditic = M and F) Asexual: Gemmules and Fragmentation
Term
Phylum Proifera (Structure...3 types?)
Definition
Spicules: Calcium Carbonate, Silica, and Spongin....Osculum is opening at top.
Term
Phylum Proifera (Lacking?)
Definition
Muscles and True Tissues
Term
Phylum Proifera (Feeding?)
Definition
Filter feeding using currents through Ostia (pores) and Incurrent canals...Intercellular digestion (phaygocytosis)...CHOANOCYTES have flagella
Term
Phylum Proifera (Excrition type?)
Definition
Diffusion
Term
Phylum Proifera (Circulatory and Nervous System?)
Definition
None!
Term
Parazoa vs Eumetazoa
Definition
No Tissue vs Have Tissue
Term
Phylum Cnidaria (Animals Included)
Definition
Jellyfish, Anemones, Corals, and Hydras
Term
Phylum Cnidaria (Stinging Cells?)
Definition
Cnidocytes contain nematocytes: little coiled up hairs that shoot out.
Term
Phylum Cnidaria (Gastrovascular Cavity Function?)
Definition
Digestion, Circulation (sloshes around), and Hydrostatic Support...only have one opening (mouth)
Term
Phylum Cnidaria (Dimorphism?)
Definition
Two body forms: Medusa and Polyp
Term
Phylum Cnidaria (Nervous System?)
Definition
Net: All over
Term
Phylum Cnidaria (Respiration and Excretion?)
Definition
Diffusion
Term
Phylum Cnidaria (Reproduction?)
Definition
Sexual:Monecious and Diecious (medusa)
Asexual: Budding (polyp)
Term
Phylum Cnidaria (Germ Layers?)
Definition
Diploblastic: epidermis and inner gastrodermis. Mesoglea inbetween.
Term
Phylum Cnidaria (Symmetry?)
Definition
Radial
Term
Phylum Cnidaria (Classes?)
Definition
Scyphozoa (Jelly fish), Hydrazoa (Hydras), and Anthozoa (Corals and Anemones)
Term
Phylum Cnidaria: Class Hydrazoa (Stages?)
Definition
Both polyp and medusa
Term
Phylum Cnidaria: Class Hydrazoa (Portuges Man O' War?)
Definition
Colonial Hydras...plyops
Term
Phylum Cnidaria: Class Hydrazoa (Medusa Bud?)
Definition
A bud on a hydra polyp that shoots out medusa.
Term
Phylum Cnidaria: Class Scyphozoa (Obelia Life Cycle pg 107)
Definition
Medusa polyp releases mature medusa..produce gametes..when fertilized a zygote is formed..developes into planula larva..larva settles and developes into polyp colony.
Term
Phylum Cnidaria: Class Scyphozoa (Aurelia Parts)
Definition
Aboral and Oral surfaces: Upper and lower...Gonads: Reprod located in gastrovascular cavity...Tenticles and Oral Arms: Short around rim; Long and Cilliated come out from near gonads...Radial and Circular Canals: Circulate oxygenated H2O and nutrients...Sensory Organs: 8 located around rim
Term
Phylum Cnidaria: Class Anthozoa (Metridium Structures "Sea Anemone")
Definition
Mouth is connected to Gastrovascular Cavity by Pharynx...Gastro Cav has stinging cells Called Acontia...Gastro Cavity has partitions called Septa (used to increase SA for digestion)
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