The Fundamental Unit of Life — Science STD 9 — Question

Poultry farming is under taken to raise following:
(i) Egg production.
(ii) Feather production.
(iii) Chicken meat.
(iv) Milk production.

Mixed cropping ______:

Living organisms are used in:

1. Organic manure.
2. Biofertilizers.
3. Natural insecticides.
4. Pesticides.

The ultimate source of energy in an ecosystem is:

1. Sunlight.
2. Glucose.
3. Protein.
4. Green plants.

Is the commonest carrier of pathogens:

1. Mosquito.
2. Housefly.
3. Helminth.
4. None of these.

The mode of nutrition in all fungi is charactercially:

1. Symbiotic.
2. Autotrophic.
3. Holozoic.
4. Saprotrophic.

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.

Large schools of fishes in open sea are located with the help of:

Grit of pear is formed of:

1. Sclereids
2. Sclerenchyma fibres
3. Tracheids
4. Companion cells

Air is a mixture of:

1. Nitrogen, oxygen, methane, carbon dioxide.
2. Nitrogen, oxygen, carbondioxide, water vapours.
3. Nitrogen, carbon dioxide, oxygen, carbon monoxide.
4. Nitrogen, oxygen, carbon monoxide, water vapours.