Name:____________________________________

tarantulaArthropods

Arthropods are animals that have jointed legs. Three-fourths of all the different animal types belong to this group. For each group below, determine the name of the group and give examples.

Class or Subphylum Characteristics Examples
  round, segmented body
two pairs of legs per segment
also known as myriapods
"thousand feet"
 
  flattened, segmented body
one pair of legs per segment
also known as myriapods
"hundred feet"
 
  hard, flexible exoskeleton
gills
branched antennae
two body sections - abdomen & celphalothorax
mostly aquatic
 
  two body sections - abdomen & cephalothorax
no antennae
four pairs of legs
chelicerae and pedipalps
spinnerets
 
  three body sections
one pair of unbranched antennae
three pairs of legs
mandibles