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hydra

hydra

hydra Sentence Examples

  • Amongst his children by Echidna are Cerberus, the Lernaean hydra, and the Chimaera.

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  • In Hydra the odcyte is a large amoeboid cell, which sends out pseudopodia amongst the odgonia and absorbs nutriment from them.

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  • Lang [29] in Hydra and other polyps.

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  • On the outbreak of the war of Greek independence refugees from Chios, after being scattered throughout Tenos, Spezia, Hydra, &c., and rejected by the people of Ceos, took up their residence at Syra under the protection of the French flag.

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  • On the outbreak of the war of Greek independence refugees from Chios, after being scattered throughout Tenos, Spezia, Hydra, &c., and rejected by the people of Ceos, took up their residence at Syra under the protection of the French flag.

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  • The species of Hydra, however, are extremely common and familiar inhabitants of ponds and ditches.

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  • - Portion;of the body-wall of Hydra, showing ectoderm cells above, separated by " structureless lamella " from three flagellate endoderm cells below.

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  • - Portion;of the body-wall of Hydra, showing ectoderm cells above, separated by " structureless lamella " from three flagellate endoderm cells below.

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  • - Hydra viridis, the freshsurrounded by a circle of water polyp. The animal is attached tentacles.

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  • A third point of dispute is whether the nematocysts ar:e formed in situ, or whether the cnidoblasts migrate with them to the region where they are most needed; the fact that in Hydra, for example, there are no interstitial cells in the tentacles, where nematocysts are very abundant, is certainly in favour of the view that the cnidoblasts migrate on to the tentacles from the body, and that like the genital cells the cnidoblasts are wandering cells.

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  • The buds may all become detached after a time and give rise to separate and independent individuals, as in the common Hydra, in which only polyp-individuals are produced and sexual elements From Allman's Gymnoblastic Hydroids, by permission of are developed the Council of the Ray Society.

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  • Hydra is, moreover, bisexual, in contrast with what is known of hydroid colonies.

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  • (In Hydra, on the other hand, the individual is usually hermaphrodite.) The medusa always reproduces itself sexually, and in some cases non-sexually also.

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  • There is, however, no evidence whatever for this, the gonads of Hydra being purely ectodermal structures, while all medusoid gono phores have an endodermal portion.

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  • To complete our survey of life-cycles in the Hydromedusae it is necessary to add a few words about the position of Hydra and its allies.

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  • 19 northern: - Ursa major, Ursa minor, Bootes, Draco, Cepheus, Cassiopeia, Andromeda, Perseus, Triangulum, Pegasus, Delphinus, Auriga, Hercules, Lyra, Cygnus, Aquila, Sagitta, Corona and Serpentarius; 13 central or zodiacal: - Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius, Pisces and the Pleiades; and 12 southern: - Orion, Canis, Lepus, Argo, Cetus, Eridanus, Piscis australis, Ara, Centaurus, Hydra, Crater and The Phoenicians - a race dominated by the spirit of commercial enterprise - appear to have studied the stars more especially with respect to their service to navigators; according to Homer " the stars were sent by Zeus as portents for mariners."

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  • - Epidermomuscular cells of Hydra.

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  • Brauer [2] for Hydra.

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  • The sub-order includes the family Hydridae, containing the common fresh-water polyps of the genus Hydra.

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  • (b) Locomotiva: Hydra, Pennatula, Taenia, Volvox, Furia, Chaos.

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  • Destruction of the Lernean hydra.

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  • coast of Argolis in the Peloponnesus, and forming along with the neighbouring island of Dokos (Dhoko) the Bay of Hydra.

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  • Subsequently, at Hydra, he put to flight eighteen Turkish vessels.

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  • Aglaosthenes or Agaosthenes, an early writer, knew Ursa minor as Kvv600vpa, Cynosura, and recorded the translation of Aquila; Epimenides the Cretan (c. 600 B.C.) recorded the translation of Capricornus and the star Capella; Pherecydes of Athens (c. 500-450 B.C.) recorded the legend of Orion, and stated the astronomical fact that when Orion sets Scorpio rises; Aeschylus (525-456 B.C.) and Hellanicus of Mytilene (c. 496-411 B.C.) narrate the legend of the seven Pleiades - the daughters of Atlas; and the latter states that the Hyades are named either from their orientation, which resembles v (upsilon), " or because at their rising or setting Zeus rains "; and Hecataeus of Miletus (c. 470 B.C.) treated the legend of the Hydra.

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  • Principal Stars and Features: Located between Corvus the Crow and Hydra the water snake, Crater is a small southern hemisphere constellation.

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  • This month we will be looking for the winter constellation of Hydra, the Snake.

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  • distributed computing environment we can run ipc followed by hydra on a large number of sets of rate constant definitions.

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  • Be like a many-headed Hydra, flexible, changing tack and tactics all the time.

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  • From the author's garden pond in December: Live green Hydra with bud, or should that be buddy, in cell slide.

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  • Above right: Video - live green Hydra, 60x.

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  • Hydra server from the Windows NT 4.0 Network Neighborhood.

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  • lopping off the heads of the Al Queda hydra will only make it grow more.

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  • lopping off the heads of the Al Queda hydra will only make it grow more.

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  • recedeERSAL EXPANSION 5) A distant galaxy in the constellation Hydra is receding from the earth at 6.12 x 10 7 m/sec.

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  • recedeERSAL EXPANSION 5) A distant galaxy in the constellation Hydra is receding from the Earth at 6.12 x 10 7 m/sec.

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  • Tom's Hydra took off, and then there was a big whoosh and something flew off, trailing smoke.

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  • Amongst his children by Echidna are Cerberus, the Lernaean hydra, and the Chimaera.

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  • After crossing the Hydra - 6 tes (Ravi) he once more came into contact with hostile tribes, and the work of storming petty towns began again.

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  • The Albanians in Greece, whose settlements extend over Attica, Boeotia, the district of � Corinth and the Argolid peninsula, as well as southern Euboea and the islands of Hydra, Spetzae, Poros and Salamis, descend from Tosk immigrants in the 14th century.

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  • In the British fresh-water fauna only two genera, Hydra and Cordylophora, are found; in America occurs an additional genus, Microhydra.

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  • The species of Hydra, however, are extremely common and familiar inhabitants of ponds and ditches.

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  • - Epidermomuscular cells of Hydra.

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  • A third point of dispute is whether the nematocysts ar:e formed in situ, or whether the cnidoblasts migrate with them to the region where they are most needed; the fact that in Hydra, for example, there are no interstitial cells in the tentacles, where nematocysts are very abundant, is certainly in favour of the view that the cnidoblasts migrate on to the tentacles from the body, and that like the genital cells the cnidoblasts are wandering cells.

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  • 8), seen in solid tentacles as a row of cubical vacuolated cells, occupying the axis of the tentacle, greatly resembling notochordal tissue, particularly that of Amphioxus at a certain stage of development; as a fourth variety of endodermal cells excretory cells should perhaps be reckoned, as seen in the pores in the foot of Hydra and elsewhere (cf.

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  • The buds may all become detached after a time and give rise to separate and independent individuals, as in the common Hydra, in which only polyp-individuals are produced and sexual elements From Allman's Gymnoblastic Hydroids, by permission of are developed the Council of the Ray Society.

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  • (In Hydra, on the other hand, the individual is usually hermaphrodite.) The medusa always reproduces itself sexually, and in some cases non-sexually also.

    0
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  • It has been maintained that the gonads of Hydra represent sporosacs or gonophores greatly reduced, with the last traces of medusoid structure completely obliterated.

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  • There is, however, no evidence whatever for this, the gonads of Hydra being purely ectodermal structures, while all medusoid gono phores have an endodermal portion.

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  • Hydra is, moreover, bisexual, in contrast with what is known of hydroid colonies.

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  • Lang [29] in Hydra and other polyps.

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  • In Hydra the odcyte is a large amoeboid cell, which sends out pseudopodia amongst the odgonia and absorbs nutriment from them.

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  • Brauer [2] for Hydra.

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  • by tangential division of the cells of the blastoderm, as in Geryonia, or by a mixture of immigration and delamination, as in Hydra, Tubularia, &c. The blastopore is formed as a secondary perforation at one spot, in free-swimming forms at the hinder pole.

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  • To complete our survey of life-cycles in the Hydromedusae it is necessary to add a few words about the position of Hydra and its allies.

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  • If we accept the view that Hydra is a true sexual polyp, and that its gonads are not gonophores (i.e.

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  • medusa-buds) in the extreme of degeneration, then it follows from Brooks's theory that Hydra must be descended from an archaic form in which the medusan type of organization had not yet been evolved.

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  • Hydra must, in short, be a living representative of the ancestor of which the actinula-stage is a transient reminiscence in the development of higher forms. It may be pointed out in this connexion that the fixation of Hydra is only temporary, and that the animal is able at all times to detach itself, to move to a new situation, and to fix itself again.

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  • There is no difficulty whatever in regarding Hydra as bearing the same relation to the actinula-stage of other Hydromedusae that a Rotifer bears to a trochophore-larva or a fish to a tadpole.

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  • If a polyp, such as Hydra, be regarded simply as a sessile actinula, we must certainly consider the polyp to be the older type, and it may be pointed out that in the Anthozoa only polyp-individuals occur.

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  • The sub-order includes the family Hydridae, containing the common fresh-water polyps of the genus Hydra.

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  • In the spring the embryo bursts its shell and is set free as a minute actinula which becomes a Hydra.

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  • In Hydra viridis the polyp is of a green colour and produces a spherical egg with a smooth shell which is dropped into the mud.

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  • Protohydra is a marine genus characterized by the absence of tentacles, by a great similarity to Hydra in histological structure, and by reproduction by transverse fission.

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  • In all the abovementioned genera, with the exception of Hydra, the life-cycle is so imperfectly known that their true position cannot be determined in the present state of our knowledge.

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  • Hence only the genus Hydra can be considered as truly representing the order Eleutheroblastea.

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  • Brauer, " Ober die Entwickelung von Hydra," Zeitschr.

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  • Grenacher, " Ober die Nesselkapseln von Hydra," Zool.

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  • Albert Lang, " Ober die Knospung bei Hydra and einigen Hydropolypen," Zeitschr.

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  • He settled in the island of Hydra on the east of the Morea, and when the Greek War of Independence began was known among his fellow townsmen as a trader in corn who had gained wealth, and who made a popular use of his money.

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  • Admiral de Rigny left for a cruise in the Levant, and Sir Edward Codrington, hearing that an Egyptian armament was on its way from Alexandria, and believing that it was bound for Hydra, steered for that island, which he reached on the 3rd of September, but on the 12th of September found the Egyptians at anchor with a Turkish squadron at Navarino.

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  • Muller (1730-1784), the describer of fresh-water Oligochaeta; Abraham Trembley (1700-1784), the student of Hydra; and O.

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  • (b) Locomotiva: Hydra, Pennatula, Taenia, Volvox, Furia, Chaos.

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  • Destruction of the Lernean hydra.

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  • 20 (from a small pediment, possibly of a shrine of the hero) the slaying of the Hydra; fig.

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  • The month of April had witnessed the revolt of the principal Greek islands, Spetsae on the 7th, Psara on the 23rd, Hydra on the 28th and Samos on the 30th.

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  • They are for the most part marine in habitat, but a familiar fresh-water form is the common Hydra of ponds and ditches, which gives origin to the name of the class.

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  • Hydra, Greece >>

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  • On the other hand, certain undoubted animals (Stentor, Hydra, Bonellia) are provided with a green colouring matter by means of which they make use of atmospheric carbonic acid.

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  • HYDRA (Or SIDRA, Nidra, Idero, &C.; anc. Hydrea), an island of Greece, lying about 4 m.

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  • coast of Argolis in the Peloponnesus, and forming along with the neighbouring island of Dokos (Dhoko) the Bay of Hydra.

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  • Hydra, the chief town, is built near the middle of the northern coast, on a very irregular site, consisting of three hills and the intervening ravines.

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  • Hydra (Legend) >>

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  • A good example of a polyp may be seen in a common sea-anemone or in the well-known fresh-water polyp, Hydra (fig.

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  • - Hydra viridis, the freshsurrounded by a circle of water polyp. The animal is attached tentacles.

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  • Subsequently, at Hydra, he put to flight eighteen Turkish vessels.

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  • 19 northern: - Ursa major, Ursa minor, Bootes, Draco, Cepheus, Cassiopeia, Andromeda, Perseus, Triangulum, Pegasus, Delphinus, Auriga, Hercules, Lyra, Cygnus, Aquila, Sagitta, Corona and Serpentarius; 13 central or zodiacal: - Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius, Pisces and the Pleiades; and 12 southern: - Orion, Canis, Lepus, Argo, Cetus, Eridanus, Piscis australis, Ara, Centaurus, Hydra, Crater and The Phoenicians - a race dominated by the spirit of commercial enterprise - appear to have studied the stars more especially with respect to their service to navigators; according to Homer " the stars were sent by Zeus as portents for mariners."

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  • Aglaosthenes or Agaosthenes, an early writer, knew Ursa minor as Kvv600vpa, Cynosura, and recorded the translation of Aquila; Epimenides the Cretan (c. 600 B.C.) recorded the translation of Capricornus and the star Capella; Pherecydes of Athens (c. 500-450 B.C.) recorded the legend of Orion, and stated the astronomical fact that when Orion sets Scorpio rises; Aeschylus (525-456 B.C.) and Hellanicus of Mytilene (c. 496-411 B.C.) narrate the legend of the seven Pleiades - the daughters of Atlas; and the latter states that the Hyades are named either from their orientation, which resembles v (upsilon), " or because at their rising or setting Zeus rains "; and Hecataeus of Miletus (c. 470 B.C.) treated the legend of the Hydra.

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  • They have no friend Iolaus to burn with a hot iron the root of the hydra's head, but as soon as one head is crushed, two spring up.

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  • UNIVERSAL EXPANSION 5) A distant galaxy in the constellation Hydra is receding from the Earth at 6.12 x 10 7 m/sec.

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  • Mythology: Hydra The constellation Hydra resembles a twisting snake, and features as such in some ancient myths.

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  • Tom 's Hydra took off, and then there was a big whoosh and something flew off, trailing smoke.

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  • Their hydra fast tank suit is a great example of style combined with productivity.

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  • Their hydra tights are perfect for freestyle swimming.

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  • Like the mythical Jason facing down the monster Hydra, Aries can work harder and smarter than anyone when the situation calls for it.

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  • As a member of the all-male team Hydra, his record as project manager -- two wins and one loss -- surpassed any other contestant's.

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  • Hydra Firming Cream locks in moisture, encourages firmness and rebuilds elasticity.

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  • However, it is much like trying to fight a hydra; every time a particular site is blocked, hackers come up with a new site (or whole group of sites) that have new proxy gateways available.

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  • After crossing the Hydra - 6 tes (Ravi) he once more came into contact with hostile tribes, and the work of storming petty towns began again.

    0
    1
  • In the British fresh-water fauna only two genera, Hydra and Cordylophora, are found; in America occurs an additional genus, Microhydra.

    0
    1
  • It has been maintained that the gonads of Hydra represent sporosacs or gonophores greatly reduced, with the last traces of medusoid structure completely obliterated.

    0
    1
  • There is no difficulty whatever in regarding Hydra as bearing the same relation to the actinula-stage of other Hydromedusae that a Rotifer bears to a trochophore-larva or a fish to a tadpole.

    0
    1
  • If a polyp, such as Hydra, be regarded simply as a sessile actinula, we must certainly consider the polyp to be the older type, and it may be pointed out that in the Anthozoa only polyp-individuals occur.

    0
    1
  • In Hydra viridis the polyp is of a green colour and produces a spherical egg with a smooth shell which is dropped into the mud.

    0
    1
  • The fact already noted that the species of Hydra can be distinguished by the characters of their nematocysts is a point of great interest.

    0
    1
  • Protohydra is a marine genus characterized by the absence of tentacles, by a great similarity to Hydra in histological structure, and by reproduction by transverse fission.

    0
    1
  • In all the abovementioned genera, with the exception of Hydra, the life-cycle is so imperfectly known that their true position cannot be determined in the present state of our knowledge.

    0
    1
  • Hence only the genus Hydra can be considered as truly representing the order Eleutheroblastea.

    0
    1
  • Brauer, " Ober die Entwickelung von Hydra," Zeitschr.

    0
    1
  • Albert Lang, " Ober die Knospung bei Hydra and einigen Hydropolypen," Zeitschr.

    0
    1
  • He settled in the island of Hydra on the east of the Morea, and when the Greek War of Independence began was known among his fellow townsmen as a trader in corn who had gained wealth, and who made a popular use of his money.

    0
    1
  • Admiral de Rigny left for a cruise in the Levant, and Sir Edward Codrington, hearing that an Egyptian armament was on its way from Alexandria, and believing that it was bound for Hydra, steered for that island, which he reached on the 3rd of September, but on the 12th of September found the Egyptians at anchor with a Turkish squadron at Navarino.

    0
    1
  • Muller (1730-1784), the describer of fresh-water Oligochaeta; Abraham Trembley (1700-1784), the student of Hydra; and O.

    0
    1
  • 20 (from a small pediment, possibly of a shrine of the hero) the slaying of the Hydra; fig.

    0
    1
  • The month of April had witnessed the revolt of the principal Greek islands, Spetsae on the 7th, Psara on the 23rd, Hydra on the 28th and Samos on the 30th.

    0
    1
  • They are for the most part marine in habitat, but a familiar fresh-water form is the common Hydra of ponds and ditches, which gives origin to the name of the class.

    0
    1
  • Hydra, Greece >>

    0
    1
  • On the other hand, certain undoubted animals (Stentor, Hydra, Bonellia) are provided with a green colouring matter by means of which they make use of atmospheric carbonic acid.

    0
    1
  • Hydra was of no importance in ancient times.

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  • Hydra (Legend) >>

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  • The fact already noted that the species of Hydra can be distinguished by the characters of their nematocysts is a point of great interest.

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    1
  • Hydra was of no importance in ancient times.

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  • The Albanians in Greece, whose settlements extend over Attica, Boeotia, the district of � Corinth and the Argolid peninsula, as well as southern Euboea and the islands of Hydra, Spetzae, Poros and Salamis, descend from Tosk immigrants in the 14th century.

    0
    2
  • Hydra must, in short, be a living representative of the ancestor of which the actinula-stage is a transient reminiscence in the development of higher forms. It may be pointed out in this connexion that the fixation of Hydra is only temporary, and that the animal is able at all times to detach itself, to move to a new situation, and to fix itself again.

    0
    2
  • Grenacher, " Ober die Nesselkapseln von Hydra," Zool.

    0
    2
  • HYDRA (Or SIDRA, Nidra, Idero, &C.; anc. Hydrea), an island of Greece, lying about 4 m.

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  • Hydra, the chief town, is built near the middle of the northern coast, on a very irregular site, consisting of three hills and the intervening ravines.

    0
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