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21 Cards in this Set
- Front
- Back
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Myriapod |
-jointed legs -jointed antennae |
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Chilopoda |
-centipedes -1 pair of legs per segment -venomous fangs, pincers -spiracles on both sides of body |
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Hexapoda |
-6 legs |
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Spiracles |
-breathe through these |
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Thorax |
-legs and wings
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Abdomen |
-part of body with legs |
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Ovipositer |
-females use this to lay eggs |
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Diplosegments |
-2 segments fused together
-2 pairs of legs, 2 spiracles |
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Millipedes vs. Centipedes |
-centipedes have venomous fangs/pincers -centipedes 1 pair of legs per segment -millipedes have diplosegments, |
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Three body sections of insects |
head, thorax, abdomen
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Two types of metamorphosis |
-INCOMPLETE=mini adult, compete for food -COMPLETE=larvae, don't compete, pupa stage |
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How are insects BENEFICIAL to humans? |
-pollinate -control other insect populations |
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How are insects DETRIMENTAL to humans? |
-destroy crops |
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How the compound eye functions |
-thousands of lenses -ommatidia |
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Respiration |
-through spiracles |
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Sexual Dimorphism |
-you can tell what sex it is by looking at it |
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Aboral Surface |
-back |
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Oral Surface |
-mouth
-stomach |
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Articulated Arms |
-highly mobile -as opposed to a sea star's arms |
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Secondary Pentaradial Symmetry |
-in adults as opposed to the larvae |
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Sea star wasting syndrome, urchin barrens |
-sea stars dying along Western coast -densovirus brought on by warmer water -the urchins just sit there and eat everything |
