6 résultats pour "wasp"
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WASP
de même que 80% des membres des conseils · d'adminis tration des meilleures universités. Exception faite de John Fitzgerald Kennedy, tous les présidents des états Unis ont appartenu à cette catégorie (et Kennedy, bien que catholique, s'y apparentait par· bien des côtés et, en particulier, son origine bostonlenne). 5 En 1969, on dénombrait au Congrès 400 Wasp contre 109 catholiques, 19 juifs, 10 Noirs, 3 orthodoxes et 4 Orientaux. Le Départe...
- L'USS «Wasp» coule (seconde guerre mondiale).
- L'USS «Wasp» coule
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Insect - biology.
they almost always have six legs. In some insects, such as beetles, the legs are practically identical, but in other insects each pair is a slightly different shape. Still otherinsects have specialized leg structures. Examples are praying mantises, which have grasping and stabbing forelegs armed with lethal spines, and grasshoppers andfleas, which have large, muscular hind legs that catapult them into the air. Mole crickets’ front legs are modified for digging, and backswimmers have hind legs de...
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Ant - biology.
The workers of many ant species carry a stinger within the hind end of the gaster. These ants use the stinger to defend against their enemies. In some species, workerants lack a stinger but use the tip of their gaster to squirt or dab poison at other small animals and when fighting battles with other ants, fending off predators, or killinginsects or other animals that they use as food. III PHYSIOLOGY Ants have a rigid, external skeleton called an exoskeleton that gives the soft, inner body its...
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Cnidarians - biology.
small, inconspicuous polyps. Polyps reproduce asexually to form a medusa—saucer-like structures bud off the polyp and swim away as new medusae. C Cubozoa The medusa phase dominates in animals in the Cubozoan class. Cubozoan medusae are commonly called box jellies because they have a cube shape with a singletentacle or group of tentacles hanging from each corner at the mouth end of the animal. The Cubozoan polyp is small and inconspicuous and an entire polyp transformsinto a medusa in a type of...