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29 Cards in this Set
- Front
- Back
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Appendage |
Any structure, such as a leg or an antenna, that grows out of the body of an animal. |
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Molting |
Shedding the old exoskeleton. |
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Cephalothorax |
A fused head and thorax. |
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Tracheal Tubes |
Branching networks of hollow air passages that carry air throughout the body. |
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Spiracles |
Air enters and leaves the tracheal tubes through openings on the thorax and abdomen through these. |
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Book Lungs |
Air-filled chambers that contain leaf-like plates. |
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Pheromones |
A chemical odor signal that is given off by animals to communicate. |
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Simple Eye |
A visual structure with one lens. |
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Compound Eye |
A visual structure with many lenses. |
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Mandibles |
The mouth parts of most arthropod groups that act as jaws. |
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Malpighian Tubules |
The structure in the abdomen of arthropods that brings wastes to the intestine. |
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Parthenogenesis |
A form of asexual reproduction in which a new individual develops from an unfertilized egg. |
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Chelicerae |
Pincers or fangs that hold food and inject prey with poison. They are the first pair of appendages in spiders. |
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Pedipalps |
Adapted for handling food and for sensing. They carry sperm for males during reproduction. They are the second pair of appendages in arachnids. |
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Spinnerets |
The structures that spin silk into threads. |
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Metamorphosis |
A series of changes controlled by chemical substances in an animal. |
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Larva |
The free-living, worm-like stage of an insect, often called a caterpillar. |
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Pupa |
A period of reorganization in which the tissues and organs of the larva are broken down and replaced by adult tissues. |
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Nymph |
Have the same general appearance as an adult, but is smaller. They cannot reproduce and have slightly different appendages than adults. It molts several times. |
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The most distinguishing characteristic of arthropods. |
Appendages |
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Sensing, walking, feeding, mating, flexibility. |
The advantages of having jointed appendages. |
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Protects internal tissue, prevents water loss, location for muscle attachment |
Three functions of an arthropod exoskeleton. |
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A new exoskeleton forms _________ the old one. (above or beneath) |
Beneath |
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A new exoskeleton forms _________ the old one. (above or beneath) |
Beneath |
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Head, Thorax, Abdomen |
The three distinct body sections of arthropods. |
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A new exoskeleton forms _________ the old one. (above or beneath) |
Beneath |
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Head, Thorax, Abdomen |
The three distinct body sections of arthropods. |
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Gills |
The type of respiratory structure that freshwater crayfish have. |
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The type of respiratory structure that a tarantula has. |
Book lungs |
