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.

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

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.

On 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.

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Biology Chapter 26 V

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

Created by: Alayna Long

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