Definitionn. (Greek mythology) monster with nine heads
Last update: July 23, 2015
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Amongst his children by Echidna are Cerberus, the Lernaean hydra, and the Chimaera. [Please select]
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The hydra at the beginning, the angel at the end. [Please select]
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Hydra, Lernean, the (hi [Please select]
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_Bud_, a small hydra or other cœlenterate growing out from the wall of the parent. [Please select]
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Identify a hydra and watch it for some time. [Please select]
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Describe the size and shape of a hydra when expanded. [Please select]
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What do you infer concerning the hydra's possession of a skeleton. [Please select]
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How many tentacles has the hydra that you are studying. [Please select]
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What does the hydra do with these tentacles when it is expanded. [Please select]
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Visit to Hampstead--Small ponds--Water-Fleas--Water-Beetle--Snails--Polyps--Hydra viridis--The Dipping-tube--A Glass Cell--The Hydra and its Prey--Chydorus Sphæricus and Canthocamptus, or Friends and their Escapes--Cothurnia--Polyp Buds--Catching Polyps--Mode of Viewing Them--Structure of Polyps--Sarcode--Polyps Stimulated by Light--Are they Conscious. [Please select]
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Visit to Hampstead--Small ponds--Water-fleas--Water-beetle--Snails--Polyps--Hydra viridis--The dipping-tube--A glass cell--The Hydra and its prey--Chydorus sphæricus and Canthocamptus, or friends and their escapes--Cothurnia--Polyp buds--Catching Polyps--Mode of viewing them--Structure of Polyps--Sarcode--Polyps stimulated by light--Are they conscious. [Please select]
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