17 terms

Arthropod Groups

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arthropoda
phylum of invertebrates that have jointed appendages and segmented bodies covered in an exoskeleton
exoskeleton
a hard, protective covering on the outside of an invertebrate's body
molting
The process to shed the exoskeleton in order to grow larger.
antennae
provide sense of touch, taste, smell, and sound
gills
The organs used for breathing by crustaceans and arthropods living in water.
tracheal tubes
network of breathing tubes that extend throughout the body in insects and myriapods.
lungs
Organs of gas exchange in spiders
thorax
middle segment of insects, where the legs are attached
cephalothorax
body part of Arachnids and Crustaceans where head and thorax are fused together
crustaceans
aquatic arthropods with 2 pair of antennae, ex: shrimp, crabs
arachnids
arthropods with 2 body segments and 4 pairs of legs, Ex: spiders, scorpions
millipedes
arthropods with long rounded bodies and 2 pairs of legs per body segment
centipedes
arthropods with long, flattened bodies and 1 pair of legs per body segment
insects
largest group of arthropods, have 3 body segments and 3 pairs of legs, eg: flies, grasshoppers
myriapods
a small group of arthropods with many legs and tubular in shape, eg. centipedes and millipedes.
wings
These organs are used for flying in air found in most insects but not other arthropods.
compound
Type of eyes with many lenses found in insect and some crustaceans; others have simple eyes.