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Invertebrates Part 2

Horizontales
a tough exoskeleton made of nonliving material
appendage that is used to crush and bite food in many arthropods
respiratory organ that has several membranes that are arranged like pages in a book (2 words)
arthropod that lacks antennae, has four pairs of walking legs, and a pair of fanglike mouth parts
process by which immature arthropods look similar to their adult form (2 words)
plate of exoskeleton that covers the head and thorax of a crustacean
system of water-filled canals that extend down the arm of an echinoderm (3 words)
a system of thin branching tubes in the bodies of insects that allow for breathing
fluid-filled space with mesoderm only on one side of the space
Verticales
hard outer structure of an insect or crustacean that provides protection and support for the organism
small flexible hollow appendages that are used for locomotion in echinoderms (2 words)
region of a crustacean body where the head and thorax meet
repeated sections that contain the same set of body structures
hole on the body of an insect's exoskeleton through which air can be taken in or released
process by which immature organisms change their body form before becoming an adult (2 words)
small overlapping calcified plates embedded in the skin of echinoderms
the first pair of walking legs in crustaceans that has a pincer-like claw
stage of metamorphosis in which the organism reorganizes into a completely new body form