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49 Cards in this Set
- Front
- Back
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What are the classes of Phylum Chelicerata?
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Class Arachnida
Class Merostomata Class Pycnogonida |
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What are the characteristics of Class Chelicerata?
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Terrestrial
Chelicerae w/ fangs Build webs |
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What are the common examples of organisms in the Class Chelicerata?
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Spiders (Black widow, Brown recluse)
Scorpions Ticks Mites Hair follicle mite |
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What does the black widow after it reproduces?
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kills its mate
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What are characteristics of the brown recluse?
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Very dangerous
Web building |
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How does the brown recluse build a web?
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Made by the spinneret gland made of silk (protein) and they use it to catch food live. The web is used to detect vibrations.
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What kind of spiders don’t build webs?
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Tarantulas
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What are characteristics of scorpions?
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Terrestrial
Chelirace wings |
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What are characteristics of Class Merostomata?
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Aquatic
Living fossils Four pairs of legs = 8 total |
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What kind of legs do Class Merostomata have?
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Chelicerae
Pedipalps Walking legs |
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What are chelicerae?
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claw-like mouth part
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What is an example of an organism in the Class Merostomata?
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Giant Water Scorpion
Horseshoe crab |
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The extinct organism in the Class Merostomata?
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Giant Water Scorpion
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What are characteristics of the Class Pycnogonida?
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4 pairs of legs
Skinny! - Almost no body Organs extend into legs |
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What is different about reproduction in Pycnogonida?
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Male has ovigerous legs where eggs are clamped.
Does not get pregnant, just holds eggs |
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What is an example of the organisms in Pycnogonida?
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Sea Spiders
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What are characteristics of the Subphylum Crustacea?
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Cephalothoracic segments
Abdominal segments Thoracic segments |
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What is a cephalothroracic segments?
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Fused head
Eye -> 1st antennae (attenules) -> 2nd antennae -> 1st & 2nd maxillae |
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What are thoracic segments?
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What are thoracic segments?
1st, 2nd, & 3rd maxillipeds -> chelipeds -> pereiopods (walking legs) |
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What are abdominal segments?
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Pleopods (swimmerets)
Tail (telson/uropods) |
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What are larval forms of Subphylum Crustacea?
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Nauplius
Zoea Megalops |
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What is a Nauplius?
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The most primitive of larval forms
Don’t look anything like an adult Larva has 1 eye Instar has 2 eyes |
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What are pereiopods?
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The first pair of all walking legs
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What are swimmerets?
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Used for swimming, structure abdomen
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What are telson/uropods used for?
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They’re used to kind of row their way to go fast
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What are the orders of the Subphylum Crustacea?
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Order Copepoda
Order Cirripedia Order Isopods Order Decapoda |
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What are characteristics of the Order Copepoda?
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Organisms: Plankton
Abundant |
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What is the difference between the shrimp & crab?
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Crab has the abdomen underneath and tucked in.
The female abdomen is wide The male abdomen is narrow |
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What are characteristics of the Order Cirripedia?
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Organisms: Barnacles
Marine Some symbiotic |
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What are characteristics of the Order Isopods?
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All marine (except Pill Bug)
Roly Poly |
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What are characteristics of the Order Decapoda?
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Largest group
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What are examples of organisms of the Order Decapoda?
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Crabs
Shrimps Lobsters Crayfish |
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What are examples of crabs?
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Blue crab: leg is for swimming
Fiddler crab Hermit crab Sponge crab: camouflaged Boxer crab/Pompom crab |
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What are characteristics of the sponge crab?
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Camouflaged
Many nocturnal, need defense or way of hiding when they’re sleeping |
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What are characteristics of the boxer crab/pompom crab?
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Has anemones attached to claw and uses them for defense
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What are examples of lobsters?
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Spiny lobster
American lobster Common “edible” shrimp |
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What are Classes of the Subphylum Uniramia?
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Class Insecta
Class Chilopoda Class Diplopoda |
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What are the characteristics of Class Insecta?
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Largest Animal group
Body plan: 3 tagma Metamorphisis & Instars |
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What about the metamorphisis & instars of the Class Insecta?
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Ametabolous aka Apterygota
Ex. Bristletail, Silverfish Metabolous aka Pterygota Hemimetabolous (incomplete) = Exopterygota Nymphs Holometabolous (complete) = Endopteygota Larva, Pupa w/ Cocoon |
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Ametabolous aka Apterygota
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Don’t undergo metamorphisis
No wing or fin |
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Metabolous aka Pterygota
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Undergo metamorphisis
Have wing or fin |
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Holometabolous aka Endopterygota
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Complete metamorphisis
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What are characteristics of the Class Chilopoda?
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Organism: Centipedes
Poison gland Repugnatorial gland: smell bad |
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What are characteristics of the Class Diplopoda?
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Organism: Millipedes
Diplosegment: 2 segments fuse into one, looks like four pairs |
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What are characteristics of the Phylum Onychorpohora?
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Terrestial worms resembling Annelids & Arthropods
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Terrestial worms
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Soft cuticle that molts
Segmented nephridia Non-jointed & Feeding appendages Hemocoel – interphase b/c open circulatory systems of blood tissues Tracheae – pipes that allow air in & out |
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What is the Phylum that is a deuterostome?
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Phylym Echinodermata
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What are the general characteristics of the Phylum Echinodermata?
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Marine
Spiny skin Pentamerous radial symmetry Water vascular system w/ tube feet (podia) Radial symmetry (usually) |
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What are classes of the Phylum Echinodermata?
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Class Holothuroidea
Class Ophiuroidea Class Echinoidea Class Crinoidea Class Asteroidea |
