BIOLOGY M.C.Q (0.5 Marks)

The natural interconnection of food chain is called:

An example of man-made ecosystem is:

The trophic level of green plants in food chain is:

What is the percentage of photosynthetically active radiation (PAR) in the incident solar radiation?

Secondary producers are:

The second trophic level in the lake is:

Which one of the following has the largest population in a food chain?

Primary productivity in an ecosystem is expressed as:

The mutualistic relationship between the stinging tentacles of a sea anemone and the clown fishe is

At which level do herbs and grasses reside?

What amount of assimilated energy is consumed by carnivores in respiration?

Productivity can be expressed in which of the following forms?

What is obtained by subtracting the losses during respiration from gross primary productivity?

Bacteria and fungal enzymes break down the detritus into simple inorganic substances. This process is called:

GPPR NPP, it refers to:

The rate of production of biomass is called :

Flow of energy in food web is :

_____________ obtain their food from dead plants and animal parts.

In which alternative pathway of flow of energy are found?

Man made ecosystem is:

The connecting link between abiotic and biotic components in an ecosystem is:

The process of modification of the environment through the influence of living organisms or successive plant communities is:

The amount of inorganic substances present in an ecosystem at a given time is known as:

The ecological pyramid which is generally studied is:

The specific amount of living at each trophic level known as:

An important step in the process of decomposition is:

A dark coloured amorphous substance is formed by the proces of humification, which is called:

When a sparrow eats seeds, fruits and peas, it is called:

What are detritus made up of ?