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1.
Water occur freely in previous rocks and deep in soil above the impermeable strata is
2.
A twig kept in water having some salt remains fresh for longer period due to
3.
If stem of plant is cut under a state of tension in xylem sap, what will be the result?
4.
One factor responsible for water rise up to 100 m of tall plant, is
5.
Read carefully the following statements and choose the right answer from the options given below
I. Diffusion is a slow process and it do not depends upon the living system
II. Usually process of diffusion does not need energy
III. Diffusion can occur from one part of a cell to another part of the same cell or from one cell to another and from one tissue to another tissue
IV. Diffusion is a rapid process over short distance, but extremely slow over long distances
I. Diffusion is a slow process and it do not depends upon the living system
II. Usually process of diffusion does not need energy
III. Diffusion can occur from one part of a cell to another part of the same cell or from one cell to another and from one tissue to another tissue
IV. Diffusion is a rapid process over short distance, but extremely slow over long distances
6.
Tension, one of the important factor in the movement of xylem sap in a tree is a result of
7.
What is the approximate dry weight contained by majority of herbaceous plants?
8.
Root hair absorb water from the soil on account of
9.
The space between the plasma membrane and the cell wall of a plasmolyzed cell surrounded by a hypertonic solution is occupied by the
10.
The first process by which water enters into the seed coat when a seed is placed in suitable environment for germination is