General Arthropod
The type of circulatory system Arthropods have
Open Circulatory System
The type of eyes of crustaceans and insects which contain thousands of lenses which give it an almost 360 degrees field of view.
compound eyes
Type of eyes with only one lens which chelicerates have.
simple eyes
The number of pair of antennae in insects.
one pair
An insect begins as a larva that bears little resemblance to the adult form. The larva molts and becomes a pupa, from which it transforms into the adult form. (egg,larva, pupa, adult)
complete metamorphosis
The type of skeleton of Arthropods
Exoskeleton
The appendages near the mouth used by crustaceans to crush food.
mandibles
Appendages that chelicerates use to eat, mate and sense their environment.
pedipalps
Three body parts of insects?
Head, thorax, and abdomen
An insect passes through a series of stages, called nymphs, which resemble the adult form, between molts. They do not pass through a pupal stage of development.
incomplete metamorphosis
The layers of carbohydrate substance which make up the suit of armor for arthropods
chiton
The number of sets of antennae on a crustacean.
two
An organ used by spiders to spin silk.
spinnerets
Chemicals released to indicate a readiness to mate, or to communicate about danger or food sources.
pheromones
These are located in the head region and give information about taste, smell, and touch.
antennae
Periodical shedding of the skeleton to allow for growth.
molting
The first three pairs of crustacean walking legs exhibit these claws.
chelipeds
Organ for breathing found in land-bound chelicerates.
book lungs
The respiratory system for an insect is made of these tubes.
tracheae
Embryo development in which young develop within eggs that hatch inside the parent's body
Ovoviviparous
The type of appendages of arthropods which enable movement.
jointed
Pairs of flipper-like appendages extending from the abdomen of crustaceans.
swimmerets
A system by which spiders can get rid of nitrogen-containing wastes without losing necessary water.
malpighian tubules
Female insects lay their eggs through this extension of their last body segment.
ovipositor
Eggs that are laid and hatched outside the parent's body