Sentence Examples


  • Symbiotic association with other animals, in varying degrees of interdependence, is frequent.
  • Their cells during the period of incubation of the symbiotic organism are abundantly supplied with starch.
  • Lastly, the symbiotic relation between the plant and ants is found in Ferns, the rhizome of Polypodium carnosum containing cavities inhabited by these insects.
  • 2.-I, Portion of epithelium from the tentacle of an Actinian, showing three supporting cells and one sense cell (sc); 2, a cnidoblast with enclosed nematocyst from the same specimen; 3 and 4, two forms of gland cell from the stomodaeum; 5a, 5b, epithelio-muscular cells from the tentacle in different states of contraction; 5c, an epithelio-muscular cell from the endoderm, containing a symbiotic zooxanthella; 6, a ganglion cell from the ectoderm of the peristome.
  • Fixation of Nitrogen.Another, and perhaps an even more important, instance of symbiotic association has come to the front during the same period, it is an alliance between the plants of the Natural Order Leguminosae and certain bacterium-like forms which find a home within the tissues of their roots.