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Phylum Arthropoda Trilobites, Chelicerates, & Myriapods Donald Winslow 7 March 2008 Hickman et al Ch. 19 pp Crustaceans: Ch. 20 pp , Insects: Ch. 21 pp
Phylum Arthropoda Diversity & abundance Exoskeleton & chitin, ecdysis (molting) Somites, tagmata, jointed appendages Complex muscular system, no cilia Open circulatory system & hemocoel Mouthparts, complete digestive tract Excretory glands & Malpighian tubules
Arthropod respiration Body surface Gills Lungs Tracheae
Arthropod nervous system Cerebral ring Two ventral nerve chains Complex sensory organs –Ocelli & compound eyes –Complex behavior
Arthropod reproduction Usually dioecious w/ internal fertilization Oviparous or ovoviviparous or viviparous Sometimes parthenogenesis Development often by metamorphosis
Phylum Arthropoda Subphylum Trilobita –extinct marine animals Subphylum Myriapoda –Centipedes & millipedes Subphylum Chelicerata –Horseshoe crabs, spiders, scorpions, etc. Subphylum Crustacea—crustaceans Subphylum Hexapoda—insects
Subphylum Chelicerata 2 chelicerae, 2 pedipalps 8-10 legs No mandibles or antennae Class Merostomata –Subclass Xiphosurida (horseshoe crabs) Class Pycnogonida (sea spiders) Class Arachnida –Spiders, scorpions, harvestmen, ticks & mites
Horseshoe crabs Carapace Abdomen Telson Eyes 10 legs Book gills
Sea spiders Males carry egg masses w/ ovigers Class Pycnogonida
Class Arachnida Order Araneae –spiders Order Scorpiones –scorpions Order Opiliones –Harvestmen (Daddy long-legs) Order Acari –Ticks & mites
Spiders Pedicel joins cephalothorax & abdomen Book lungs and/or tracheae & spiracles Malphigian tubules & excretory glands 8 ocelli, sensory setae, poison, webs Brain, suboesophageal ganglion Sinuses Sperm from M pedipalps to F receptacle
Spider feeding & defense Insect predation Dangerous spiders –Black widow –Brown recluse (fiddleback)
Scorpions Cephalothorax Preabdomen Postabdomen with stinger
Order Opiliones Harvestmen or Daddy Long-legs Scavengers
Ticks & mites Terrestrial or aquatic, sometimes parasitic Mouthparts on capitulum Cephalothorax & abdomen fused Chiggers, scabies, Lyme disease Rocky Mountain Spotted Fever Dust mites, follicle mites
Myriapods Head & trunk, many somites Class Chilopoda (centipedes) –Predators, poison fangs, 2 legs per segment Class Diplopoda (millipedes) –4 legs per abdominal segment
Phylum Arthropoda Terrestrial Mandibulates: Spiders and Insects.
Phylum Arthropoda Introduction. Largest phylum of animals Over 900,000 species described includes: –spiders, scorpions, mites, ticks –insects, millipedes,
Entomology 101 Arthropod Groups David J. Shetlar, Ph.D. The “BugDoc” The Ohio State University, OARDC & OSU Extension Columbus, OH © Sept, 2009, D.J. Shetlar,
9. Arthropods Largest and most successful phylum in the animal kingdom. 85% of all animals! Largest and most successful phylum in the animal kingdom.
Arthropods Chapter 36 Table of Contents Section 1 Phylum Arthropoda Section 2 Subphylum Crustacea Section 3 Subphylum Chelicerata and Myriapoda.
ARTHROPODS SUBPHYLA: TRILOBITA, CRUSTACEA, CHELICERATA, AND UNIRAMIA.
Kingdom – Animalia Phylum Arthropoda – “jointed foot” Sub phyla: Crustacea – crabs, crawfish, shrimp ARTHROPODS.
Phylum Arthropoda Includes insects, spiders, crayfish,… Most successful animal group.
ArthropodsChapter 36 Chapter 36 Phylum Arthropoda Section 36.1.
An arthropod is an invertebrate with an exoskeleton, a segmented body, and jointed legs.
ArthropodsChapter 36 Chapter 36 Phylum Arthropoda Section 36.1 Video.
Section 28.1 Summary – pages A typical arthropod is a segmented, coelomate invertebrate animal with bilateral symmetry, an exoskeleton, and.
PHYLUM ARTHROPODA Subphylum Chelicerata. Characteristics Their bodies are composed of two tagmata: Cephalothorax Abdomen Six pairs of cephalothoracic.
Chapter 18 Arthropods Chapter 19 Crustaceans Chap.20 Terrestrial Arthropods.
Arthropod phylogeny & Insect Evolution. Objectives: Identify characteristics of the Arthropoda Discuss Arthropod Phylogeny Characteristics of major taxa.
Phyla Onychophora and Arthropoda Click on picture to go to phylum Onychophora Arthropoda.
Arthropods By: Ethan Jones and Xavier. Arthropods Makes up 3/4's of all animal species -total number of arthropod species is MORE than all other species.
ARTHROPODS HOLT CH. 29 PG ARTHROPOD CHARACTERISTICS Segmented body.
Makes up 3/4's of all animal species Includes insects, spiders, scorpions, millipedes, centipedes, crabs, lobsters, & crayfish Arthropod means "jointed.
Arthropods. What is Entomology? The study of insects (and their near relatives). What are insects (and near relatives)? Insects and their relatives are.
PHYLUM ARTHROPOD BY: ARIANA MEJIA. CHARACTERISTICS Segmented body plan Exoskeleton Has an open circulatory system Nervous system has a dorsal.
Bi 212, Lecture 5 Phylum Arthropoda. Phylum Arthropoda: “jointed foot”
Phylum Arthropoda. Characteristics Makes up 3/4 of all animal species Includes insects, spiders, scorpions, millipedes, centipedes, crabs, lobsters,
Phylum Arthropoda. 1.Arthropoda – “jointed legs” A. Segmented bodies, jointed appendages, and a tough exoskeleton made of chitin. 1). 3 layers a) Outer.
1 Phylum Arthropoda. 2 Jointed Legs 3 Number of species Arthropoda Echinodermata Ciliophora Chordata Mollusca Platyhelminthes Nematoda Porifera Annelida.
Chapter 26: Phylum Arthropoda. (PHYLUM: ARTHROPODA) Includes horseshoe crabs, spiders, insects, crustaceans, ticks, mites, centipedes & millipedes Aquatic.
Phylum Arthropoda. ARTHROPODS Largest Phylum o Insects Bilateral symmetry Segmented bodies Exoskeleton of chitin & protein o Ecdysozoa.
Arthropods and Their Relatives Characteristics –Exoskeleton (external covering made of CHITIN) –Molts or sheds exoskeleton to grow –Jointed appendages.
Phylum Arthropoda “jointed appendaged animals’. The phylum with the greatest number of species Four lineages: –Trilobites (all extinct) –Chelicerates.
-The exoskeleton is made up of chitin and protein. a. Provides protection b. Provides points of attachment for the muscles that move appendages -The animal.
Arthropods Jointed-legged invertebrates. Arthropod Characteristics Metamerism with tagmatization Chitinous exoskeleton Paired-jointed appendages Growth.
Phylum Arthropoda. Typical Arthropod Structures Means “Joint-foot” Includes lobsters, crabs, spiders, insects, millipedes, & centipedes Bodies w/segments.
Phylum Arthropoda Arthropoda Includes… Spiders, scorpions, ticks, mites, crustaceans, millipedes, centipedes, insects.
Arthropod Groups David J. Shetlar, Ph.D. The “BugDoc” The Ohio State University, OARDC & OSU Extension Columbus, OH © October, 2004, D.J. Shetlar, all.
The Arthropods Keith Power. * Arthropods are by far the most successful of all animals * Well over 1,000,000 species * Some say over 30 million species.
Phylum Arthropoda. Arthropods Make up about 80% of the known animal species Insects are by far the most common species of arthropods Arthropod means.
Phylum Arthropoda General characteristicsGeneral characteristics –largest group by sheer numbers – total number exceeds that of all other kinds of animals.
Phylum Arthropoda By: Kane Richardson. What is an Arthropod? Arthropods pollinate many of the flowering plants on Earth. Arthropods pollinate many of.
1 Arachnids Dale Taylor Advanced Life Science Rainier Jr/Sr High School.
Arthropods Jointed-legged invertebrates. There are more species in the Phylum Arthropoda than in all the other animal phylums combined. (There are over.
Phylum Arthropoda Crayfish, Lobsters, Spiders, Mites, Scorpions, & Insects.
Classification- Phylum Arthropoda Chapter 19 Subphylum Trilobita (extinct) Subphylum Trilobita (extinct) Subphylum Chelicerata Subphylum Chelicerata Class.
Phylum Arthropoda. Protostome Eucoelomate Ecdyzoa Jointed Appendages Thick, chitin exoskeleton Tagmata – grouping/fusion of segments.
Phylum Arthropoda – Phylum and Subphyla Characteristics Phylum Characteristics: segmented body (tagmata), chitinous exoskeleton; jointed appendages; highly.
Phylum Arthropoda (The Arthropods) By far and away, the most successful animal group ever to live Consists of over 1 million named species, 2 of every.
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