NOUN
- (cosmology) the original matter that (according to the big bang theory) existed before the formation of the chemical elements
How To Use ylem In A Sentence
- Xylem and xylem parenchyma can be recognized in the centre of the taproot surrounded by a ring of meristematic tissue with very high intensity.
- Xylem vessels, the vascular tubes responsible for water transport throughout the plant, are formed by tracheary elements.
- Slide 12: F F F F ก 40x xylem parenchyma epidermis collenchyma chlorenchyma Recently Uploaded Slideshows
- Their internal stem structure is characterized by a eustele with endarch protoxylem, where a small amount of manoxylic wood is produced from a bifacial vascular cambium.
- Stained cells corresponding to immature xylem were detected in vascular bundles of flowers and fruits.
- The most obvious manifestation of this is the development of wood, or secondary xylem, from the vascular cambium.
- In addition, the magnitude of growth-associated is similar between xylem and mesophyll and between xylem and epidermis.
- When it shoves its tubelike mouthparts into a plant to suck sap from the xylem, the insect may transmit a deadly plant bacterium, Xylella fastidiosa, in its saliva.
- At low power magnification, entire radial stem sections were imaged and the area stained by the safranin determined relative to the total amount of xylem tissue.
- The other well-known xylem tapping parasites are the mistletoes.
