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Biology Chapter 26

Biology Chapter 26 Vocabulary

TermDefinition
Throax the middle body region, consisting of three fused main segments to which, in many arthropods, the legs and wings are attached.
Abdomen contains fused segments and is at the posterior end of the arthropod, bears additional legs and contains digestive structures and the reproductive organs.
Cephalothrorax tendency to concentrate sensory organs and nervous tissue at an animal's anterior end.
Appendage structures, such as legs and antennae, that grow and extend from an animal's body.
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 mouth parts 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 sac-like pockets with highly folded walls for respiration.
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 chemicals secreted by many animal species that influence the behavior of other animals of the same species.
Cheliped the first pair of legs.
Swimmeret the short legs behind the walking legs.
Chelicera one of a pair of arachnid appendages modified to function as fangs or pincers.
Pedipalp the second pair of appendages. and are used for sensing and holding prey.
Spinneret located at the end of a spider's abdomen. In spiders, the structure that spins silk from a fluid protein secreted by their glands.
Metamorphosis a series of major changes from a larval form to an adult form.
Pupa a non-feeding stage of metamorphosis.
Nymphs Insects that undergo incomplete metamorphosis hatch eggs know as this. the immature form of insects that look like small adults without fully developed wings.
Caste a group of individuals within a society that perform specific tasks.
Created by: StephanyCastillo
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