Tissues — Science STD 9 — Question

___ is grown in mixed cropping:

Which of the labeled parts of the cell is its controlling centre:

Choose the incorrectly matched pair from the options given below.

The fungus disease causing maximum death of poultry bird is:

1. Coryza
2. Pullorum
3. Rickets
4. Aspergillosis

While preparing a slide for observing onion peel under a microscope, the onion peel is immediately kept in a watch-glass containing a drop of water. Why this is done?

Inland fisheries is referred to:

1. Culturing fish in freshwater.
2. Trapping and capturing fishes from sea coast.
3. Colchicine treatment.
4. Breeding with their wild relatives.

In chronic disease a patient suffers from:

1. Poor appetite.
2. Short breath.
3. Tiredness.
4. All the above.

Parenchyma is a type of ________.

Exotic breed of poultry bird having high egg laying capacity is:

Which crop is grown between two cereal crops in crop rotation?