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multicellular

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multicellular

multicellular Sentence Examples

  • Many Siphonales are encrusted of planes and a multicellular individual.

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  • These arise from the axial cell, and are multicellular and branched.

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  • The hairs are multicellular, and of two kinds, one branching and ending in a fine point, while the other, unbranched, terminates in a clump of small cells.

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  • It is true that in the unicellular plants all the vital activities are performed by a single cell, but in the multicellular plants there is a more or less highly developed differentiation of physiological activity giving rise to different tissues or groups of cells, each with a special function.

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  • In these cases, certain cells of a colony of unicellular plants or of the filaments of multicellular plants enlarge greatly and thicken their wall.

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  • In some filamentous forms this " fragmentation " into multicellular pieces of equal length or nearly so is a normal phenomenon, each partial filament repeat s ing the growth, division and q?

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  • D, Part of branched filamentous thallus of the multicellular Green Alga Oedocladium.

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  • At the present day feiy groups of the animal kingdom are so well known to the microscopist, few groups present more interesting affinities to the morphologist, and few multicellular animals such a low physiological condition.

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  • Many forms, even when multicellular, have all their cells identical in structure and function, and are often spoken of as physiologically unicellular.

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  • C, Base of the multicellular filamentous Green Alga Chaetomorpha aes-ea.

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  • - Lord Kelvin's Multicellular Electrostatic Voltmeter.

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  • The multicellular species consist of filaments, branched or unbranched, which arise by the repeated divisions of the cells in parallel planes, no formation of mucilage occurring in the dividing walls.

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  • In one type they may take the form of specially-modified single epidermal cells or multicellular hairs without any direct connection with the vascular system.

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  • A growth both of the funnel, which becomes multicellular, and of the rest of the nephridium produces the adult nephridia of the genera mentioned.

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  • - Round Dial Kelvin Multicellular Electrostatic Voltmeter, 5-in.

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  • 6, The multicellular ascogonium 3, Passage of the antheridial derived by division from the nucleus towards that of the oogonium; the terminal cell oogonium.

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  • The spores themselves may be unicellular without a septum or multicellular with one or more septa.

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  • Such colonial forms as Hydrurus and Phaeocystis are supposed, however, to indicate a stage in the passage to the multicellular condition.

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  • Melobesia callithamnioides gives rise to multicellular propagula; Griffithsia corallina is said to give rise to new individuals, by detaching portions of the thallus from the base of which new attachment organs have already arisen.

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  • The megaspore is filled with tissue as in typical Gymnosperms, and from some of the superficial cells 3 to 5 archegonia are developed, characterized by long multicellular necks.

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  • The protoplasm then becomes cut up by a series of clefts into a number of smaller and smaller pieces which are unicellular in Pilobolus, multicellular in Sporodinia.

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  • Of these the first three include multicellular plants, some of them of great size; the last three are unicellular organisms, with little in common with the rest excepting the possession of a brown colouring matter.

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  • Such hyphae may be multicellular, or they may consist of simple tubes with numerous nuclei and no septa (Phycomycetes), and are then non-cellular.

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  • In all the multicellular plants of this group which have been adequately investigated, vegetative multiplication by means of what are known as hormogonia has been found to occur.

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  • One of the best known of these is Lord Kelvin's multicellular voltmeter.

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  • This very large group of plants is characterized by the possession of a special type of conidiophore - the basidium, which gives its name to the group. The basidium is a unicellular or multicellular structure from which four basidiospores arise as outgrowths; it starts asa binucleate structure, but soon, like the ascus, becomes uninucleate by the fusion of the two nuclei.

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  • The thallus may be unicellular or multicellular.

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  • One much-used electrostatic voltmeter of this type is the Kelvin multicellular vertical pattern voltmeter (fig.

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  • In some forms as in Ascobolus the ascogonium is multicellular, the various cells communicating by pores in the transverse walls (fig.

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  • In 1998 the nematode became the first multicellular organism to have its genome sequenced.

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  • The green plants (including both multicellular and unicellular green algae) and the red algae.

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