Causes of plant succession are:
Abiotic components are:
Biotic components are:
Non-biotic components can be grouped into:
Synecology can be subdivided into how many branches:
Ecosystem includes:
Components of ecosystem are:
Abiotic factors are:
Branches of ecology are:
Which of the following is expected to have the highest value (gm/m2/yr) in a grassland ecosystem?
In a food chain, the total amount of living material is depicted by: A. Pyramid of biomass B. Pyramid of energy C. Pyramid of number D. Trophic levels
Environmental factors in ecosystem:
The correct sequence of food chain is:
Bacteria and fungi in a forest ecosystem are generally:
Ecological pyramids were discovered by:
An ecosystem which can be easily damaged but can recover after sometime if damaging effect stops will be having:
During food chain the maximum energy is stored in:
In the following there is no difference:
The ultimate energy source of ecosystem is:
In the phosphorus cycle, weathering makes phosphate available first to:
The fungi in a forest ecosystem act as:
Decomposers are:
In a biome the life form of climatic climax vegetation is:
Buttresses are usually found in the plants growing in:
These belong to the category of primary consumers:
The plants of Cupressus and Cedrus are characteristic of:
The moist tropical deciduous forest biomes show predominace of plants like:
The temperate broad-leaf forest biomes are characterized by the predominance of
During anaerobic digestion of organic waste, such as in producing biogas, which of the following is left undegraded?
Nektons are:
Plants like Saccharum. Impetrate, Capparis and Acacia occur in the following biome:
Which of the following food chain may not be directly dependent upon solar energy?
Carbon cycle includes:
Azolla is used as a biofertilizer because it:
If bamboo plant is growing in a far forest then what will be its trophic level?
Which type of the following ecological pyramids are never inverted?
Mr. X is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying:
This is an inverted pyramid:
In food chain initial organisms are:
Peacock eats a snake and snake eats frog and frog eats insect while insect eats green plant, then position of peacock is:
A food chain has the following trophic levels:
In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:
Source of energy in an ecosystem is:
Savannahs are:
The rate of storage of food energy at consumer level is called:
Which of the following is an artificial ecosystem?
Tip of ecological pyramid is occupied by:
When the number of organisms at successive levels are plotted, they assume the space of a pyramid. This is called the pyramid of:
Ten percent law of energy transfer, in a food chain was enunciated by:
Which part of the pond ecosystem does not affect by the temperature:
Relative biological effectiveness (RBE) is usually referred to damages caused by:

Plant succession means:

A. A change in the composition and nature of plant community of particular habitat over the years
B. Any habitat can be studied systematically provided the area is free from any external disturbance
C. Both (a) & (b)
D. None of these

Correct Answer: Both (a) & (b) ✔

Last Updated: May 16, 2024