WebMay 23, 2024 · Mollusca (n.) Mollusca. (n.) "division of invertebrate animals with soft, unsegmented bodies, no jointed legs, and commonly covered by hard shells," 1797, from Modern Latin mollusca, chosen by Linnaeus as the name of an invertebrate order (1758), from neuter plural of Latin molluscus "thin-shelled," from mollis "soft" (from PIE root *mel- … WebOne of its more visible traits comes from looking at the etymology of the word /echinoderm/, which stems from the Greek words’ echinos’ and ‘derma,’ meaning ‘spiny’ and ‘skin,’ respectively. Another prominent feature among echinoderms is its radial symmetry. More specifically, echinoderms benefit from a pentamerous arrangement ...
Study Notes on Asterias Echinodermata
WebMar 11, 2024 · Echinoderms, or members of the phylum Echinodermata, are some of the most easily-recognized marine invertebrates. This phylum includes sea stars (starfish), sand dollars, and urchins, and they are … WebJul 6, 2010 · Sea cucumbers, or holothurians, are an abundant and diverse group of Echinodermata. The more than 1,420 described extant species (Smiley 1994; Kerr 2003) occur in all marine environments from the intertidal to the deepest oceanic trenches, where they may constitute >90 % of the biomass (Belyaev 1972).Among these are synallactid … shop 12 larsen road redlynch qld
echinoderm Etymology, origin and meaning of …
WebNov 13, 2024 · echo. (n.) mid-14c., "sound repeated by reflection," from Latin echo, from Greek ēkhō, personified in classical mythology as a mountain nymph who pined away for love of Narcissus until nothing was left of her but her voice, from or related to ēkhē "sound," ēkhein "to resound," from PIE *wagh-io-, extended form of root * (s)wagh- "to ... WebAug 18, 2024 · echidna. (n.) Australian egg-laying hedgehog-like mammal, 1810, said to have been named by Cuvier, usually explained as from Greek ekhidna "snake, viper" … WebJun 27, 2024 · Chapter contents: Echinodermata –– 1. Exclusively Fossil Taxa–– 2. Crinoidea –– 3. Asteroidea –– 4. Ophiuroidea ←–– 5. Echinoidea –– 6. Holothuroidea … shop 121 west liberty