Ch. 24 Flashcards
Hard outer structure, such as the shell of an insect or crustacean, that provides protection and support for the organism.
Exoskeleton
Invertebrate with an exoskeleton, jointed appendages, and a segmented body.
Arthropod
Tough, protective polysaccharide that makes up arthropod skeletons and the cell walls of the fungi.
Chitin
Extension, such as an antenna or arm, that is attached to the body.
Appendage
Repeated sections of an annelid’s long body that contain the same set of bodily structures, apart from its distinct head and tail region.
Segmentation
Any of the aquatic arthropods, such as lobsters, crabs, and shrimps, that has a segmented body, an exoskeleton, and paired, jointed limbs.
Crustacean
Part of an arthropods body that is behind the thorax
Abdomen
Region of an arthropod’s body that is behind the thorax
Cephalothorax
Plate of exoskeleton that covers the head and thorax of a crustacean.
Carapace
Appendage that is used to crush and bite food.
Mandible
Arthropod that lacks antennae and has four pairs of walking legs and a pair of fang like mouth parts.
Chelicerates
Terrestrial chelicerate, such as a spider.
Arachnid
Respiratory organ that has several membranes that are arranged like the pages in a book.
Book Lungs
Hole on the body of an insect’s exoskeleton through which air can be taken in or released.
Spiracle
Long structure made of soft tissue that connects the mouth and horse to the lungs in a human.
Tracheae
Process by which immature arthropods look similar to their adult form
Incomplete Metamorphosis
Process by which immature organisms change their body form before becoming an adult
Complete Metamorphosis
Stage of metamorphosis in which the organism reorganizes into a completely new body form
Pupa
Chemical that is used to kill insects
Insecticide
Organism, such as a mosquito or tick, that transfers pathogens from one host to another.
Vector
