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28 Cards in this Set
- Front
- Back
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Vertical mass |
The central section of a mollusk a body that contains he organs |
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Mantle |
A layer of tissues that cover the body of invertebrates |
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Foot |
An appendage that some invertebrates use to move |
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Radula |
A rasping, tongue like organ covered in teeth used for feeding |
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Trochophore |
A free swimming, ciliates larva |
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Siphen |
Hollow tube of mollusks used for sucking in and expelling sea water |
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Seta |
One of the external bristles or spines that project from the body of an animal |
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Septum |
A dividing wall, such as the internal wall between an Annelida adjacent segments |
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Cerebral ganglion |
One of a pair of nervecell clusters that serve as a primitive brain |
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Thorax |
The mid body region |
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Cephalothorax |
Body part made up of the head and the thorax |
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Appendage |
A structure that extends from the main body, such as a limb, tentacle, fin, or wing |
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Trachea |
One of a network of air tubes in insects, spiders, and myriapods. |
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Spiracle |
An external opening in an insect or arthropod, used in respiration |
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Malpighian tubule |
An excretory tube that opens into the back part of the intestine of most insects and certain arthropods |
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Compound eye |
An eye composed of many light detectors separated by pigment cells |
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Molting |
The shedding of an exoskeleton, skin, feathers, or hair to be replaced by new parts |
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Chelicera |
Pair of appendages used to attack prey |
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Pedipalp |
One of a second pair of appendages |
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Spinneret |
An organ that spiders and certain insect larvae use to produce silky threads for webs and cocoons |
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Mandible |
A type of mouthparts found in some Arthropoda that is used for eating |
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Metemorphosis |
A phase in the life cycle of many animals during which a rapid change from the immature organism to the adult takes place |
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Chrysalis |
The hard shelled pupa of certain insects, such as betterflies |
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Pupa |
The immobile, non feeding stage between the larva and the adult of insects that undergo complete metamorphosis |
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Caste |
A group of insects in a colony that have a specific function |
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Water vascular system |
In Echinoderms, a system of canals filled with a watery fluid |
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Tube foot |
One of many small, flexible fluid filled tubes that project from the body of an Echinoderm and that are used in locomotion, feeding, gas exchange, and excretion |
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Skin gill |
A transparent structure that projects from the surface of a sea star and that enables respiration |
