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59 Cards in this Set
- Front
- Back
Anabiosis |
A state of dormancy involving reduced metabolic activity during unfavorable environmental conditions |
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Cryptobiosis |
Extreme state of anabiosis when all external signs of metabolic activity are absent |
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Anhydrobiosis |
When body metabolism is undetectable |
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Cyclomorphosis |
Two distinct morphologies alternate |
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Oral stylet |
Used to pierce cell walls |
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Oral papillae |
Resembles a small leg behind mouth |
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Slime glands |
Modified nephridia, open at ends of oral papillae to discharge adhesive |
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Hemocoel |
Blood chamber where internal organs can be bathed in body fluids |
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Ecdysis |
Hormone-mediated form of molting |
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Tagmosis |
Regional specialization to produce segment groups specialized for different functions |
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Tagmata |
Specialized body regions (head, thorax, abdomen) of Arthropoda |
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Cuticle |
Secreted by underlying epidermis |
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Biramous limbs |
Appendages with large exites, such as gills or paddles |
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Molting |
Shedding of exoskeleton |
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Ecdysone |
Molting regulatory hormone |
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Intermolts |
Stages in between molts (when tissue grows in Arthropoda) |
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Exuvium |
A cast-off intact exoskeleton |
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Malphigian tubules |
Excretory structures formed from mid or hindguts of insects and more |
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Repugnatorial glands |
Produce noxious substances to deter predators |
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Hemolymph |
Arthropod blood |
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Book lungs |
Sacciform pickets with thin walls called lamellae |
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Tracheae |
Inwardly directed branching tubules |
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Spiracles |
Pores in tracheae |
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Pseudotracheae |
Short branching tubes that bring air close to the blood filled spaces in appendages |
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Cerebral ganglia |
Arthropoda brain |
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Compound eyes |
Comprised of photoreceptive units |
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Ommatidia |
Photoreceptive units |
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Telson |
Last segment in abdomen |
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Ephippium |
Portion of shed carapace acting as an egg case |
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Carapace |
Head shield |
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Cephalothorax |
Carapace fused with a thoracic segment |
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Antennules |
First antennae |
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Antennae |
2nd antennae |
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Mandibles |
Lower jaw thing |
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Maxillae |
2nd maxillae |
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Maxillipeds |
Appendages of fused segments forming mouthparts |
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Pleon |
Abdomen |
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Uropods |
Form a distinct tail fan in malacostracans |
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Nauplius |
Crustacean larval stage |
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Cirri |
Slender hairlike filament |
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Pterothorax |
Mesothorax and metathorax united to form this rigid structure |
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Imaginal discs |
Clusters of early embryonic cells |
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Wing veins |
Contain circulating hemolymph and open into the body |
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Tympanic organs |
Develop from fusion of parts of a trachea and body wall |
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Imagos |
Reproductively mature insects |
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Ovipositor |
Cuticular extensions around the gonopore |
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Ametabolous |
Direct development |
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Hemometabolous |
No pupal stage in development |
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Homometabolous |
Indirect development |
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Nymphs |
Terrestrial juvenials |
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Naiads |
Aquatic juveniles |
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Pupae |
Pupal stage |
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Cocoon |
Protective |
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Prosoma |
Fused head and thorax |
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Opisthosoma |
Posterior part of body |
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Chelicara |
Modified appendage at front of body - pinchers |
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Pedipalps |
2nd pair of appendage modified into pinchers |
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Silk glands |
Silk glands |
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Spinnerets |
Organs through which silk is produced |