Arthropod Flashcards
Arthropod
An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and jointed appendages. Arthropods form the phylum Arthropoda, and include the insects, arachnids, myriapods, and crustaceans.
Molting
shed old feathers, hair, or skin, or an old shell, to make way for a new growth.
Pheromones
are naturally occurring odorless substances the fertile body excretes externally, conveying an airborne signal that provides information to, and triggers responses from, the opposite sex of the same species.
Thorax
the part of the body of a mammal between the neck and the abdomen, including the cavity enclosed by the ribs, breastbone, and dorsal vertebrae, and containing the chief organs of circulation and respiration; the chest.
Abdomen
the part of the body of a vertebrate containing the digestive organs; the belly.
Cephalothorax
is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind.
Exoskeleton
is the external skeleton that supports and protects an animal’s body
Cheliped
is a pincer-like organ terminating certain limbs of some arthropods.
Malpighean tubes
Malpighian tubules are slender tubes normally found in the posterior regions of arthropod alimentary canals. Each tubule consists of a single layer of cells that is closed off at the distal end with the proximal end joining the alimentary canal at the junction between the midgut and hindgut.
Arachnid
Arachnids are a class of joint-legged invertebrate animals, in the subphylum Chelicerata. All arachnids have eight legs, although the front pair of legs in some species has converted to a sensory
Spiders
Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms
Metamorphosis
the process of transformation from an immature form to an adult form in two or more distinct stages
Crustaceans
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles.
Insects
Insects are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body, three pairs of jointed legs, compound eyes and one pair of antennae
Antennae
either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods