Middle body region of an arthropod consisting of three fused main segments that may bear legs and wings.

In arthropods, posterior body region of an arthropod that contains fused segments, digestive structures, reproductive organs, and bears additional legs; in humans, part of body that is between the diaphragm and pelvis.

In arthropods, the structure formed from the thorax region fused with the head.

In arthropods, a structure such as a leg or an antenna that grows and extends from the outside body covering.

in arthropods, the periodic shedding of the protective exoskeleton so their bodies can continue to grow.

In most arthropods, one of a pair of mouthparts adapted for biting and chewing food.

In most terrestrial arthropods, one of a system of tubes that branch into smaller tubules and carry oxygen throughout the body.

In spiders and some other arthropods, the respiratory structure with highly folded walls whose membranes look like book pages.

Opening in the arthropod body through which air enters and waste gases leave.

in most arthropods, the waste-excreting structure that also helps maintain homeostatic water balance.

Chemical secreted by an animal species to influence the behavior of other members of the same species.

In most crustaceans, the first pair of legs, which has large claws to trap and crush food.

Crustacean appendage used as a flipper during swimming.

One of a pair of arachnid appendages modified to function as fangs or pincers.

One of a pair of arachnid appendages used for sensing and holding prey and in male spiders used for reproduction.

In spiders, the structure that spins silk from a fluid protein secreted by their glands.

In most insects, the series of changes from a larval form to an adult form.

Non Feeding stage of complete metamorphosis in which the insect changes from the larval form to the adult form.

Immature form of an insect during incomplete metamorphosis- the hatchling looks like a small adult insect and goes through several molts, eventually becoming a mature winged adult.

Specialized group of individuals in an insect society that performs specific tasks.

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CS Chapter 26 Vocab

Vocab

Term	Definition
Thorax	Middle body region of an arthropod consisting of three fused main segments that may bear legs and wings.
Abdomen	In arthropods, posterior body region of an arthropod that contains fused segments, digestive structures, reproductive organs, and bears additional legs; in humans, part of body that is between the diaphragm and pelvis.
Cephalothorax	In arthropods, the structure formed from the thorax region fused with the head.
Appendage	In arthropods, a structure such as a leg or an antenna that grows and extends from the outside body covering.
Molting	in arthropods, the periodic shedding of the protective exoskeleton so their bodies can continue to grow.
Mandible	In most arthropods, one of a pair of mouthparts adapted for biting and chewing food.
Tracheal Tube	In most terrestrial arthropods, one of a system of tubes that branch into smaller tubules and carry oxygen throughout the body.
Book Lung	In spiders and some other arthropods, the respiratory structure with highly folded walls whose membranes look like book pages.
Spiracle	Opening in the arthropod body through which air enters and waste gases leave.
Malpighian Tubule	in most arthropods, the waste-excreting structure that also helps maintain homeostatic water balance.
Pheromone	Chemical secreted by an animal species to influence the behavior of other members of the same species.
Cheliped	In most crustaceans, the first pair of legs, which has large claws to trap and crush food.
Swimmeret	Crustacean appendage used as a flipper during swimming.
Chelicera	One of a pair of arachnid appendages modified to function as fangs or pincers.
Pedipalp	One of a pair of arachnid appendages used for sensing and holding prey and in male spiders used for reproduction.
Spinneret	In spiders, the structure that spins silk from a fluid protein secreted by their glands.
Metamorphosis	In most insects, the series of changes from a larval form to an adult form.
Pupa	Non Feeding stage of complete metamorphosis in which the insect changes from the larval form to the adult form.
Nymph	Immature form of an insect during incomplete metamorphosis- the hatchling looks like a small adult insect and goes through several molts, eventually becoming a mature winged adult.
Caste	Specialized group of individuals in an insect society that performs specific tasks.

Created by: christopher shaddock

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