While analysing the anatomy of a given slide,phloem,cambium and xylem are present . Identify the material.

Some anatomical details of a material are given below vascular bundles are conjoint and open, medullary rays are present, hypodermis collenchymatous, cortex heterogenous. Identify the material. Name the tissue given above from which interfascicular cambium develops during secondary growth.

Identify the plant grow from the data given below: habitat tree xylem vessels present absence of companion cell in phloem no fruits

Analyse the picture given below. : Identify 'A'.

While doing anatomy practical, students observe ten following characters: (i) Undifferentiated ground tissue. (ii) Numerous vascular bundles and are scattered. (iii) Sclerenchymatous hypodermis. (iv) Presence of bundle sheath. Identify the material. Write any one example of a plant having such characters.

Read the following statements carefully and select the appropriate option given below. (i) It is possible to store pollen grains of a large number of species for years in liquid nitrogen (-196^(@)) . (ii) Cells of the nucellus have abundant reserve food materials. (iii) In a normal flower which opens and exposes the anthers and the stigma, complete autogamy is common. (iv) If both male and female flowers are present on the same plant, it prevents both autogamy and geitonogamy. (v) Cultivation of hybrids has tremendously increased productivity.