arthropods Flashcards
(25 cards)
Arthropod
an invertebrate animal of the large phylum Arthropoda, such as an insect, spider, or crustacean.
Molting
shed old feathers, hair, or skin, or an old shell, to make way for a new growth.
Pheromones
a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behavior or physiology of others of its species.
Thorax
he middle section of the body of an insect, between the head and the abdomen, bearing the legs and wings.
Abdomen
the posterior part of the body of an arthropod, especially the segments of an insect’s body behind the thorax.
Cephalothorax
the fused head and thorax of spiders and other chelicerate arthropods.
Exoskeleton
a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.
Cheliped
one of the pair of legs that bears the large chelae in decapod crustaceans.
Malpighean tubes
a tubular excretory organ, numbers of which open into the gut in insects and some other arthropods.
Arachnid
an arthropod of the class Arachnida, such as a spider or scorpion.
Spiders
an eight-legged predatory arachnid with an unsegmented body consisting of a fused head and thorax and a rounded abdomen. Spiders have fangs that inject poison into their prey, and most kinds spin webs in which to capture insects
Metamorphosis
(in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
Crustaceans
an arthropod of the large, mainly aquatic group Crustacea, such as a crab, lobster, shrimp, or barnacle.
Insects
a small arthropod animal that has six legs and generally one or two pairs of wings.
Antennae
either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods.
Scorpions
a terrestrial arachnid with lobsterlike pincers and a poisonous sting at the end of its jointed tail, which it can hold curved over the back. Most kinds live in tropical and subtropical areas.
Swimmerets
another term for pleopod.a forked swimming limb of a crustacean, five pairs of which are typically attached to the abdomen.
Green glands
green gland one of a pair of glands (believed to have excretory functions) in some crustaceans near the base of the large antennae.
Woodtick
any of several ixodid ticks: as. a : a widely distributed tick (Dermacentor andersonii) of western North America that is a vector of Rocky Mountain spotted fever. b : american dog tick
Grasshopper
a plant-eating insect with long hind legs that are used for jumping and for producing a chirping sound. It frequents grassy places and low vegetation.
Butterfly
an insect with two pairs of large wings that are covered with tiny scales, usually brightly colored, and typically held erect when at rest. Butterflies fly by day, have clubbed or dilated antennae, and usually feed on nectar.
Housefly
a common small fly occurring worldwide in and around human habitation. Its eggs are laid in decaying material, and the fly can be a health hazard due to its contamination of food.
Mosquito
a slender long-legged fly with aquatic larvae. The bite of the bloodsucking female can transmit a number of serious diseases including malaria and encephalitis.
Crab
a crustacean with a broad carapace, stalked eyes, and five pairs of legs, the first pair of which are modified as pincers. Crabs are abundant on many shores, especially in the tropics, where some have become adapted to life on land.
2.
a louse that infests human body hair, especi
