Q. No.Most animals that are in deep oceanic water are?
1. Primary consumers
2. Secondary consumers
3. Tertiary consumers
4. Detritivores
The vertical distribution of different species occupying different levels in a biotic community is known as:
2. stratification
3. zonation
4. pyramid
The mass of living material at a tropic level at a particular time is called:
2. standing state
3. net primary productivity
4. standing crop
In an ecosystem, the rate of production of organic matter during photosynthesis is termed as:
1. net primary productivity
2. gross primary productivity
3. secondary productivity
4. net productivity
Most animals are tree dwellers in a:
2. thorn woodland
3. temperate deciduous forest
4. tropical rainforest
If 20 J of energy is trapped at the producer level, then how much energy will be available to peacocks as food in the following chain?
Plant → mice →snake→ peacock
| 1. | 0.02 J | 2. | 0.002 J |
| 3. | 0.2 J | 4. | 0.0002 J |
Which one of the following processes during decomposition is correctly described?
| 1. | Humanification-Leads to the accumulation of a dark-coloured substance in humans which undergoes microbial action at a very fast rate |
| 2. | Catabolism-Last step decomposition under fully anaerobic condition |
| 3. | Leaching-Water soluble inorganic nutrients rise to the top layers of the soil |
| 4. | Fragmentation-Carried out by organisms such as earthworms |
Secondary productivity is the rate of formation of new organic matter by:
1. Parasite
2. Consumer
3. Decomposer
4. Producer
1. Grasshopper
2. Wolf
3. Phytoplankton
4. Lion
1. Small plants
2. Fish
3. Man
4. Zooplankton
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