Flashcards in Chapter 13: Phylum Arthropoda Deck (26)
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?
Specialized for locomotion, reproduction, chemosensory, etc.
What classes are in the subphylum Chelicerata?
Characteristics of Class Merostomata
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?
Characteristics of Subphylum Crustacea
Biramous appendages, two pairs of antennae, one pair of eyes, every ecosystem
Characteristics of Class Malacostraca
(Lobsters, crabs, crayfish)
Characteristics of subphylum Myriapoda
Long bodied, many segments, many legs
What classes are in subphylum Myriapoda?
Characteristics of Class Diplopoda
Poisonous, two pairs of legs per segment, domed/rounded body
Characteristics of Class Chilopoda
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?
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
Elytra, largest order of animals
Characteristics of Order Diptera
One pair of wings, halteres
What keeps a flies balance?
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