BIOCH28VOC
Terms
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- tough external covering
- exoskeleton
- makes up exoskeleton, and is made from protein and a carbohydrate
- chitin
- structure such as legs and antennae that extend from the body wall
- appendage
- extend throughout the body, branching, air filled tubes, terestrial arthropods
- tracheal tubes
- small openings located along the side of the body
- spiracles
- organs that have layers of respiratory tissue stacked like the pages of a book
- book lungs
- saclike organs that extract wastes from the blood and then add them to feces, or digestive wastes, that move through the gut
- malpighian tubules
- arthropod sheds its entire exoskeleton and manufactures a larger one to take its place
- molting
- formed by fusion of the head with the thorax
- cephalothorax
- lies just behind the head and houses most of the internal organs
- thorax
- the posterior part of the body
- abdomen
- the part of the exoskeleton that covers the cephalothorax
- carapace
- a mouthpart adapted for biting and grinding food
- mandible
- bear large claws that are modified to catch, pick up, crush, and cut food
- chelipeds
- flipperlike appendages used for swimming
- swimmerets
- contain fangs and are used to stab and paralyze prey
- chelicerae
- longer than chelicerae and are usually modified to grab prey
- pedipalps
- organs that contain silk glands
- spinnerets
- immature forms of insects that undergo gradual, look very much like the adults
- incomplete metamorphosis
- dramatic change in body form, larvae nothing like parents
- complete metamorphosis
- stage in which an insect changes from larva to adult
- pupa
- specific chemical messengers that affect the behavior or development of other individuals of the same species
- pheromones
- a group of closely related animals of the same species that work together for the benefit of the whole group
- society
- groups of individuals specialized to perform particular tasks, or roles
- castes