Chapter 13: Phylum Arthropoda Flashcards
Characteristics of Arthropods
Triploblastic, bilateral symmetry, eucoelomates, segmented bodies, jointed appendages, exoskeleton(made of chitin), open circulatory system, largest phylum, every ecosystem
Subphylum Chelicerata Characteristics
Chelicerae, two body segments(tagmata), four pairs of walking legs, pedipalps, no antennae, every ecosystem
What do pedipalps do and what subphylum are they in?
Subphylum: Chelicerata
Specialized for locomotion, reproduction, chemosensory, etc.
What classes are in the subphylum Chelicerata?
Merostamata, Arachnida
Characteristics of Class Merostomata
Horseshoe crabs
Book gills, marine, elongated telson
Characteristics of Class Arachnida
Spiders, scorpions, mites, ticks
Chelicerae are fangs(spiders), no abdominal appendages, 8 eyes
What subphylums are in the phylum Arthropoda?
Chelicerata, Crustacea, Myriapoda, Hexapoda
What class is in the subphylum Crustacea?
Malacostraca
Characteristics of Subphylum Crustacea
Biramous appendages, two pairs of antennae, one pair of eyes, every ecosystem
Characteristics of Class Malacostraca
Lobsters, crabs, crayfish
Maxillae, Chelipeds
Characteristics of subphylum Myriapoda
Long bodied, many segments, many legs
What classes are in subphylum Myriapoda?
Diplopoda, chilopoda
Characteristics of Class Diplopoda
Millipedes
Poisonous, two pairs of legs per segment, domed/rounded body
Characteristics of Class Chilopoda
Centipedes
Venomous fangs/modified chelicerae, one pair of legs per segment, flattened body
Characteristics of Subphylum Hexapoda
Three pairs of legs, three body segments(tagmata)
What are the three segments of tagmata for hexapodas?
Head, thorax, abdomen
What class is in subphylum Hexapoda?
Insecta
Characteristics of Class Insecta
Wings, largest/most diverse group of animals, one pair of antennae, every ecosystem
What are the orders of Class insecta?
Coleoptera, Diptera, Hymenoptera, Lepidoptera, Orthoptera
Characteristics of Order Coleoptera
Beetles
Elytra, largest order of animals
Characteristics of Order Diptera
Flies
One pair of wings, halteres
What keeps a flies balance?
Halteres
Characteristics of Order Hymenoptera
Bees, wasps, ants, hornets
Narrowed abdomen, social insects
Characteristics of Order Lepidoptera
Butterflies and Moths
Scaled wings, probiscis
What is a proboscis?
Straw like structure used to suck up nectar
Characteristics of Order Orthoptera
Grasshoppers and Crickets
Modified hind legs for jumping
