Phylum Arthropoda - Mr. Stanley's Classes

Phylum Arthropoda - Mr. Stanley's Classes

Phylum Arthropoda Arthropod Classifications Four main lines, which most zoologists recognize as 4 distinct subphyla (some list these as Classes) 1. Trilobita - extinct trilobites 2. Chelicerata - horseshoe crabs, spiders, ticks,

mites, and some extinct groups 3. Crustacea - crabs, lobsters, shrimps, barnacles 4. Uniramia - insects, centipedes, millipedes The Arthropod Exoskeleton Epidermis secretes an external skeleton called the exoskeleton

Advantages of possessing an exoskeleton: strong support muscles can attach to and pull against it protectionagainst predators, and infection prevents internal tissues from drying out, esp. on land Dis-Advantages : does not grow as the animal does must molt

Gills Many aquatic arthropods (crabs and lobsters) - folds of tissue with a large surface area

Reproduction Sexes are separate; fertilization is external in aquatic forms, internal among the terrestrial forms Arthropod Diversity

SubPhylum Crustacea Abdomen is also highly variable, but it is primitively large Groups with a well-developed abdomen usually possess six pairs of appendages: Five pairs of structures called swimmerets Open circulatory system (no blood vessels)

Crustacean Diversity Ostracod Copepod Fairy shrimp

Water flea Fish louse Barnacles are Crustaceans!

Recently Viewed Presentations

  • Jurisdiction Over The Person (In Personam Jurisdiction)

    Jurisdiction Over The Person (In Personam Jurisdiction)

    Jurisdiction Pittman - Cyberlaw & E-Commerce * Jurisdiction refers to a court's power to hear and decide a case - the power to "speak" the law Trial courts have original jurisdiction, that is, trial courts provide a location for lawsuits...
  • GASP Current Funds/Expenditure GASP Sports Premium 8000 and

    GASP Current Funds/Expenditure GASP Sports Premium 8000 and

    How the Goole cluster works: The funding has enabled the cluster of schools to hire. 2 primary specialist teachers. Mr Butterworth. Mr Butterworth supports Goole Academy in sports leadership awards for students and the teaching staff at Airmyn Park, Boothferry,...
  • World Languages Parent Meeting - Cobb County School District

    World Languages Parent Meeting - Cobb County School District

    The "teacher" will be a Georgia Virtual School (GaVS) teacher. Assignments and grades will be given by the GaVS teacher. Questions/communication about the class will be done through GaVS, not Mr. Gandolfo. 1 unit of high school credit is awarded...
  • Welcome to 2019 Parent GCSE revision Event Parent

    Welcome to 2019 Parent GCSE revision Event Parent

    get . organised. to reduced distractions. Give . key tips . on planning and . ... WHAT specifically are you revising. T - task: HOW will you do the revising. ... Testing & quizzing app . Easy access - revision...
  • Pronoun Notes - Atlanta Public Schools

    Pronoun Notes - Atlanta Public Schools

    Pronouns and Antecedents The noun that the pronoun replaces or refers to is called the antecedent. The bus lost its tire. ("its" refers to the bus, so bus is the antecedent) Maria's mom wanted her to call.
  • Care Anywhere the story so far.. Andrew Copley

    Care Anywhere the story so far.. Andrew Copley

    National Data taken from National Eolc intelligence network 2011 figures for Airedale and Bradford . GSF register data taken centrally from TPP report. I ntermediate c are h ub. launched November 2014. 24/7. referrals from health professionals. MDT approach to...
  • Writing and Reading Magical Realism:

    Writing and Reading Magical Realism:

    Writing and Reading Magical Realism: A Multidimensional Approach to Multicultural Literature Roger S. Baskin, Educational Specialist Office of Student Achievement Definition Magical realism is a genre of literature that treats supernatural occurrences as mundane and the mundane as fantastic.
  • New England Electricity Roundtable: 150th Gala

    New England Electricity Roundtable: 150th Gala

    Introductions: Successes and Failures. One minute each person at table. Name/Organization. Most important single success . over past 20 years in restructuring the electric utility industry, and developing electricity-related policies, programs, and laws