Improvement In Food Resources — Science STD 9 — Question

Bulk transport occurs through:

Which of the following is micronutrient?

The nuclear material without nuclear membrane is observed in:

Which of the following is not a part of epidermal tissue system?

Efficient large-sized cells are:

Cattle husbandry is done for the following purpose.

1. Milk production.
2. Agricultural work.
3. Meat production. 
4. Egg production.

1. (i), (ii) and (iii)
2. (ii), (iii) and (iv)
3. (iii) and (iv)
4. (i) and (iv)

Which of the following statements given below is correct about meristematic tissue?

Fertilizers cause:

1. Eutrophication of water bodies.
2. Killing of most microorganisms.
3. Destruction of crumb structure of soil.
4. All the above.

What will improve the quantity of food production?

Matrix of connective tissue is produced by:

1. Plasma cells
2. Mast cell
3. Fibroblasts
4. Both (b) and (c)