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Lab Practical
Protostomia II
14
Biology
Undergraduate 2
12/10/2007

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Term
Protostomia II (Phyla)
Definition
Nematoda and Arthropoda
Term
Protostomia II: Phylum Nematoda (Common Name and Description)
Definition
Small worm-shaped organisms...many are parasitic
Term
Protostomia II: Phylum Nematoda (Body Cavity)
Definition
Psedocoelomates...Ectoderm -> Mesoderm -> Endoderm -> Pseudocoelom -> Digestive Cavity...Many organs float in the fluid-filled cavity. Aids in the distribution of nutrients and removal of wastes. Serves as a hydrostatic skeleton.
Term
Protostomia II: Phylum Nematoda (Examples)
Definition
Vinegar Eels (Turbatrix aceti) and Ascaris
Term
Protostomia II: Phylum Nematoda (Male vs Female)
Definition
Testis and Vas Deferens -vs- Uterus, Oviduct and Ovary
Term
Protostomia II: Phylum Nematoda (Locomotion)
Definition
Logitudinal Muscles (no circular muscles like annelides)...Whip lick motion in water used for movement
Term
Protostomia II: Phylum Arthropoda (Subphyla?)
Definition
Chelicerata, Crustacea, and Uniramia
Term
Protostomia II: Phylum Arthropoda: Subphylum Chelicerata (Description and Example)
Definition
mouth parts consisting of fang-like structures known as Chelicerae...Ticks, spiders, etc (8-legs)....Class Merostomata (ex Horseshoe crab) and Class Arachnidia
Term
Protostomia II: Phylum Arthropoda: Subphylum Crustacea (Description and Example)
Definition
Mouth parts are mandibles. Many appendages are BIRAMOUS (branched)...Crayfish, Crabs (3 or more pairs of legs; 2 pair antennae)
Term
Protostomia II: Phylum Arthropoda: Subphylum Uniramia (Description and Example)
Definition
Mouth parts are mandibles. Appendages are Uniramous...Centipedes, Insects (3 or more pairs of legs; 1 pair antennae)....Class Chilopoda (ex centipede); Class Diploda (ex millipede); Class Insecta (ex Grasshopper)
Term
Protostomia II: Phylum Arthropoda (Characteristics)
Definition
Bilaterall symmetry...Metamerized (segmented) body with jointed appendages (biramous or uniramous)...Tagmata (head:eyes, mouthparts and antennae; Thorax:wings, jointed legs or gills; Abdomen
Term
Protostomia II: Phylum Arthropoda(Grasshopper Anatomy pg 145)
Definition
Head, thorax, and abdomen...antennae, compound and simple eyes, mandibles; forewing, hindwing; femur, tibia and tarsi of walking leg, ovipostor on Female or claspers on male; spiracles; tympanum (sound)
Term
Protostomia II: Phylum Arthopoda (Metamorphosis)
Definition
Simple/Incomplete metamorphosis (Grasshopper)...Complete/Holometabolous metamorphosis (Butterfly)
Term
Protostomia II: Phylum Arthropoda: Subphylum Crustacea (Anatomy of a Crayfish pg 140)
Definition
Cephalothorax (head and thorax region) covered in Carapace (protective piece of exoskeleton)...Antenna and Antennule (Smaller)...compound eyes...mandibles...5 pairs of walkig legs...Oviduct opening (center bottom of female)...Seminal Receptacle on female (after 5th walking leg)...Vas Deferens on male (5th walking leg)...Swimmerets on abdomen (1st two used in male for sperm transfer)...Telson and Uropods are near anus.
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