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17 Cards in this Set

  • Front
  • Back
chelicerae horseshoe crab
used to hold and break up food
pedipalps in horseshoe crab
useful for manipulating food
covering of the horseshoe crab
carapace (tough and leathery)
what class is the horseshoe crab?
Class Merostomata
why isn't the horseshoe crab a crustacean?
b/c it doesn't have antennae
merostomata segmentation
cephalothorax, abdomen, long telson (tail spine)
what class are the spiders and scorpions a part of ?
Class Arachnida
chelicerae in spiders
first pair of appendages, in some spiders these contain poison fangs
pedipalps in arachnida
second pair of appendages, used in feeding and courtship (Small in spiders, large in scorpion)
what class are centipedes are part of?
Class Chilopoda
what kind of mandibles to Centipedes have?
jaw-like mandibles
how do centipedes obtain nutrients?
terrestrial predators (poison fangs to feed on worms and insects)
how do millipedes obtain nutrients?
herbivorous (and non poisonous)
what class are crustaceans a part of ?
Class Crustacea
what direction does a crayfish swim and with what does it use to swim?
backwards with it's swimmerets
What is the largest class of Arthropoda
Class Insecta
how many walking legs to class insecta animals have?
6