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:

The mass of living material at a tropic level at a particular time is called:

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:

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

Which one of the following processes during decomposition is correctly described?

Secondary productivity is the rate of formation of new organic matter by:

1. Parasite

2. Consumer

3. Decomposer

4. Producer