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Ch 33

AP Biology

QuestionAnswer
Spongocoel Central cavity of simple sponge
Osculum Large opening through wich things flow out of a sponge
Choanocytes Collar cells lined inside spongocoel
Mesohyl Seperates 2 layers of cells in a sponge
Amoebocytes Cells roaming mesohyl tht use pseudopodia, take food from water, digest it, and bring it to other cells
Hermaphrodites Individual produces sperm and egg
Gastrovascular Cavity Central digestive compartment in cnidarian
Polyps Cylindrical forms with tentacles up
Medusa Flat & mouth-down
Cnidocytes Cells tht defend and captures prey, in tentacles
Cnidae Organelles capable of everything
Nematocysts Cnidae with stinging capsules
Colloblasts Lasso cells part of long tentacles of comb jellies
Planarians Carnivore preys on small animals
Complete Digestive Tract Digestive tube with a separate mouth and anus
Parthenogenesis Females produce more females from unfertilized eggs
Closed Circulatory System Blood is contained in vessels
Lophophorate Animals Animals in phyla Bryozoa, Phoronida, and Brachiopoda
Lophophore Horse shaped body wall with ciliated tentacles that surround the mouth
Bryozoans Colonial animals, resemble mosses
Phoronids Tube-dwelling marine worms
Brachiopods Lamp shells; two halves are dorsal and ventral to the animatl rather then lateral, as in clams
Foot Used for movement, part of mollusk
Visceral Mass Contains most of the internal organs, part of mollusk
Mantle Tissue drapes over visceral mass and secretes a shell, mollusk
Mantle Cavity Water filled chamber houses gills, anus, and excretory pors, mollusk
Radula Straplike rasping organ used to scrape up food, mollusk
Trochophore Part of mollusk life cycle in which it's a ciliated larva
Torsion Part of Gastropoda embyonic dev in which an asymmetrical muscle forms and one side grows faster than the other
Ammonites Shelled cephalopods during Cretaceous period
Metanephridia Excretory tubes on each segment of the worm with ciliated funnels that remove wastes from the blood and coelomic fluid
Open Circulatory Systems Arthropods, Hemolymph is propelled by the heart through short arteries and then into sinuses surrounding the tissues and organs
Trilobites Arthropods diverged in this group, all extinct
Chelicerates Arthropods diverged in this group, scorpions,spiders,ticks,horseshoe crabs
Uniramians Arthropods diverged in this group, centipedes,millipedes,insects
Crustaceans Arthropods diverged in this gour, crabs,lobsters,shrimps,barnacles
Chelicerae Clawlike feeding appendages
Mandibles Uniramians and Crustaceans have these jaws
Compound Eyes Multifaceted eyes with many separate focusing elements
Trilobites Early arthropods pronounced segmentation in Paleozoic era
Eurypterids Water scorpions that were chelicerates
Class Arachnida Modern chelicerates on land that include scorpions,spiders,ticks, and mites
Book Lungs Stacked plates contained in internal chamber of most spiders
Entomology Stury of insects
Malpighian Tubules Met wastes are removed from hemolymph by these organs, outpocketings of the digestive tract
Tracheal System Gas exchange in insects, chitin-lined tubes that infiltrate the body and carry oxygen directly to cells
Isopods Crustacean group, small marine species
Copepods Crustacean group, small group mainly of freshwater plankton
Decapods Large crustaceans; lobsters,crayfish,crabs,shrimp
Echinoderms Sessile animals with radial symmetry as adults
Vascular System Network of hydraulic canals branching into tube feet
Tube Feet Part of vascular system that fun in locomotion,feeding,and gas exchange
Created by: 1216549400
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