No. |
Tissue system |
Tissues present |
1. |
Epidermal tissue system |
Epidermis, trichomes, hairs, stomata |
2. |
Ground tissue system |
Parenchyma, collenchyma, sclerenchyma, mesophyll |
3. |
Vascular tissue system |
Xylem, phloem, cambium |
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell.
Describe the structure of the following with the help of labelled diagrams.
(i) Nucleus
(ii) Centrosome
How are polysaccharides and disaccharides digested?
What is meant by double circulation? What is its significance?
Katai mast site hai
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