Card Set Information
Phylum Arthropoda featuring subphylum Trilobita, subphylum Myriapoda, Class Chilopoda and Diplopoda, Subphylum Chelicerata and subphylum Crustacea
The fusion of two or more body segments.
Deep and thick, made of chitin and proteins, as well as calcium sometimes.
Thinner and superficial, made of lipids and proteins, repels water and provides protection from dehydration.
Molting. The old shell is lost so the new shell can take its place.
Insect respiratory system, uses many pores to feed oxygen directly to its tissue.
advanced eyes that specialize in color and motion.
A more efficient excretory system, reduce water loss in waste expulsion.
Extinct. Trilobites; Bottom dwellers, similar characteristics of horseshoe crabs. Could roll up like pill bugs.
Tagmatized into a head and trunk, houses class Chilopoda and Diplopoda.
Class Chilopoda and Diplopoda
The centipedes and millipedes respectfully. Chilo's have one pair of legs per segment while the Diplo have 2 pairs.
Scorpions, spiders, ticks, etc.; Head and thorax are combined into cephalothorax.
Chelicerae and pedipalps
Modified appendages, they handle food.
Modified appendage, secretes digestive fluids.
Horseshoe crab appendage, grinds their food.
Crabs, lobsters, etc.; Mostly marine, pill bug being an exception. Have mandibles.
carapace ends at this region, the end of the carapace.
Hard cover covering the head of the crayfish.
Atennules and antenna
Specialized appendages for sensory perception.
Maxillae and mandibles
Maxillae moves food to the mandibles, whom crush food.
Modified appendages that make up mouth parts after the mandible.
Bigger legs used to walk around or help swim.
The pincer, used in defense.
Uropod and telson
the "fins" on the crayfish, used to help swim.
used by males to help with mating
Found on females, expels eggs for fertilization.
A balance sensory receptor.
Gills and Gill chamber
Used for gas exchange.
Moves constantly to keep a current on the gills.
Cardiac and pyloric stomache
Churn and chew food.
Hard teeth like structure found in the pyloric stomach.
clusters of neuron cell bodies, act as the brain.