Webb(i) The plant body is sporophyte and differentiated into root, stem and leaves. (ii) The plant possess well developed tap root system. In some cases the roots are symbiotically associated with algae (e.g., Coralloid roots of Cycas) or … Webb3 maj 2024 · The upper epidermis is composed of parenchyma cells that appear empty. There are two clusters of enlarged cells within the upper epidermis. These are bulliform cells and are not present in the lower epidermis. Stomata occur in approximately even numbers in both the upper and lower epidermis.
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WebbPonderosa pine stem showing multiple fire scars. The tree started growth in 1639 but 44 years later (1683) a fire destroyed two-thirds of the vascular cambium. The tree survived and subsequent growth was able to repair some of the damage. Other fires occurred in 1693, 1747, 1795 and 1861. Webb6 apr. 2024 · The loblolly pine is a tall conifer in the genus Pinus and the family Pinaceae. The evergreen loblolly pine is identified by its oval-rounded crown, dark green needle leaves, and long cylindrical green cones that mature to buff-brown. Loblolly pines grow 40 to 115 ft. (12 – 35 m) tall and up to 40 ft. (12 m) wide. ethos offset
NEET Biology Plant Kingdom MCQs Set B, Multiple Choice Questions
WebbIn Pinus, I. The stem is branched II. Roots have fungal association in the form of mycorrhiza III. The male and female strobili are borne on different trees Of the above statements: (1) Only I is correct (2) Only II is correct (3) Only I and II are correct (4) I, II and III are correct Q 4: 61 % From NCERT (1) (2) (3) (4) WebbStem stout, glabrous, Fertig et al. (1973) as well as the comparison sparsely or densely resinous at surface, dis- with specimens in the herbaria KNYA, ANK, tinctly sulcate, angular or ± terete, entirely much GAZI, HUB, ISTE and K showed that the speci- branched, with a weakly developed fibrous collar mens represented a species new to science. WebbJosé Alfonso Domínguez-NúñezMarta Berrocal-Lobo, in Biofertilizers, 2024. 20.2.2.2 Frankia. Other examples of mutualistic bacteria associated with plants are Frankia, which induces the formation of nodules in actinorrhizal plants (mainly trees and shrubs), such as Alnus or Casuarina trees, where bacterial nitrogen fixation takes place.. Frankia is an … ethos of education