Porifera - Guides d'étude, Notes de cours & Résumés

Be familiar with the common characteristics of animals. - Answer - Multicellular heterotrophs - cells lack cell walls -most have nerves, muscles, and capacity to move at some point in the life cycle - able to reproduce sexually - specialized sensory structures and nervous system - cells exist in extensive extracellular matrix - unique cell junctions What type of life cycle do all animals show? - Answer gametic What is the most likely ancestor of animals? - Answer choanoflag...

Identify the characteristics that distinguish animals from other types of organisms. - Answer-Multicellular Heterotrophic Motile Reproduce sexually Use aerobic metabolism Lack cell walls Have life cycles that include development from undifferentiated cells Have a variety of body plans Distinguish between asymmetry, radial symmetry, and bilateral symmetry. - Answer-Asymmetry: no particular organization Radial symmetry: Circularly organized. If cut in half vertically, the halves will loo...

Principles of Biology (Biol 198) Exam Questions And Answers (Updated And Verified) _____ is a type of connective tissue and _____ is a type of epithelial tissue. - answerBone; lining of the digestive tract What is the top side of a vertebrate and other bilateral organisms? - answerDorsal side What is the bottom side of a vertebrate and other bilateral organisms? - answerVentral side Germ layer on the outside layer of the body. Forms skin and nervous system (nerves). - answerEctoderm The...

Phylum Porifera (sponges) multicellular organisms without tissues, organs, or body cavity Heterotroph organism that obtains energy from the foods it consumes; also called a consumer Spicules hard spear or star-shaped structures; made of CaCO3 (limestone) or silica (glass) Choanocyte line the gastrovascular cavity & capture food Amoebocyte digest & distribute food Osculum large opening at the top where excess water leaves Spongocoel large central cavity of the sponge

BIO 151 Lab Exam #1 questions and answers Porifera - answer-sponges Cnidaria - answer-jellyfish, corals, sea anemones Platyhelminthes - answer-flatworms, tapeworms, flukes Annelida - answer-Segmented worms, earthworms; anus and mouth; closed circulatory system; nervous system; setae-bristle appendages Mollusca - answer-(snails, clams, squids, octopuses) have a soft body that in many species is protected by a hard shell Arthopoda - answer-Insects: bilaterally symmetric; exoskeleton; segm...

Bio 120 - Exam 1 Questions with Correct Answers Graded A+ Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile

1. Phylum Porifera - Answer-- sponges - loosely organized and lack tissues - multicellular with several types of cells - 8,000 species, mostly marine - no apparent symmetry - adults sessile, larvae free-swimming - water drawn through pores into spongocoel - flows out through osculum - choanocytes line spongocoel - mesohyl between choanocytes and epithelial cells - reproduce sexually and asexually 10. Phylum Nematoda - Answer-- roundwomrs - in nearly all habitats - over 20,000 specie...

BIO 335: Porifera Test- Questions with 100% Correct Answers

Test Bank for Animal Diversity, 9th Edition 9e by Cleveland Hickman, Jr., Susan Keen, Allan Larson, David Eisenhour and Larry Roberts. ISBN-13: 0887 Full Chapters test banks are included 1. Science of Zoology and Evolution of Animal Diversity 2. Animal Ecology 3. Animal Architecture 4. Taxonomy and Phylogeny of Animals 5. Unicellular Eukaryotes 6. Sponges: Phylum Porifera 7. Cnidarians and Ctenophores 8. Xenacoelomorpha, Platyhelminthes,Gastrotricha, Gnathifera, including Chaetognat...

Principles of Biology (Biol 198) Exam Questions And Answers (Updated And Verified) _____ is a type of connective tissue and _____ is a type of epithelial tissue. - answerBone; lining of the digestive tract What is the top side of a vertebrate and other bilateral organisms? - answerDorsal side What is the bottom side of a vertebrate and other bilateral organisms? - answerVentral side Germ layer on the outside layer of the body. Forms skin and nervous system (nerves). - answerEctoderm The...