The term niche was proposed by:

An association between two organisms by which both are benefited is called:

The major compononts of ecosystem are:

In each case succession is initiated by a few hardy invaders called:

Study of single population relationship to its environments is called

Once nitrate enters the plant cell it is reduced as:

Grazera feeds on:

The study of relationships of organisms to their environment is known as:

Which one of the following is a parasite:

The total production of organic matter by green plants minus respiratory loss is called :

Synecology is also known as the

Climax is the establishment of

The seral stages of a primary succession are:

The total energy from sun is trapped by producer in an ecosystem is:

7."Atrno" means:

During energy transformation at different trophic leVels, the energy lost as heat is in range:

Consumer that preys other animals is known as:

The succession in pond is called:

The bacteria in the root nodules fix nitrogen and convert it into:

Nitrogen is balanced by:

The abiotic component of an ecosystem is :

Balance of ecosystem is kept by:

Elements required in large amounts are called:

Group of interbreeding organisms residing together in space & time are:

The bacteria In the root nodules fix nitrogen and convert it into:

The succession which occur in dry soil or rock is:

The role played by an individual in a communtiy is :

Charles Eton defined the niche as the species's :

A loclized group of individuals belonging to the same species is called as :

Land lifeless structure is referred by the stage:

Which one is responsible for the conversion of nitrites into nitrates ?

The living organisms which can prepare their own food are:

In ecosystem the word teco is related to:

8."Litho" means:

Who defined the niche as the species occupation ?

Moss stage is represented by :

Group of individuals which can interbreed & produce organisms of their own kind form a:

Microorganisms while use protein, release ammonia. This process is:

How does a predators react to population density of prey?

The distinct levels or link of food chain are called:

3.Regional ecological community of plants & animals form:

5.The relationship of a single population towards its environment is called:

A change In the community, structure of an ecosystem over a period of time is :

Lithosphere includes:

In a grassland food chain, what is the correct sequence:

The animal that is caught and eaten is called :

In which of the following from nitrogen enters into plant bodies ?

Study of relationship of different communities to environment is called:

Which one of the following refers to commensalisms:

Primary succession starting in a pond is called:

Lichens are an example of :

A symbiotic relationship that benefits one species & neither helps nor harms the other is called:

Which one of the following is autotroph:

One of the following is an example of predator-prey relationship:

Diseases in living organisms caused by parasites are called:

Succession starts on dry soil is called:

4.Layer of earth where life is present is called:

In 1917, term niche was first proposed by AmericanOrnithologist named

Intfestations are the diseases which are caused by _______ in living organisms.

The bacteria living in the root nodules of the legume plants serve to fix atmospheric.

If population of predator increases then population of prey.

10.Food chains combine to form:

The actual location of place, where an organism lives is called Its:

All the food chains begin with:

When bacteria in soil oxidize ammonia or ammonium ions, this Is called:

Production of new organic matter at the consumers level is called :

Who proposed the term Niche in Ecology:

9.Fungi as well as bacteria are generally known as:

What is the net production of the total photosynthate after the use by plants themselves?

A group of inter-breeding individuals, beloging to same species and sharing a common geophraphic area, is called :

The change In structure of community of an ecosystem during a time

The actual location of place, where an organism lives is called Its:

The process in which micro-organisms use the proteins and amino acids and release ammonia of ammonium ions is known as :

The relationship between insects and flowering plants is the example of

Of the total sunlight that strikes the earth, what amount of it is absorbed by photosynthetic machinery?

One of the following is an example of predator-prey relationship:

Herbaceous stage in xerosere is the

Biome is a :

6.The study of growth responses of plant is called:

C.Eton defined the Niche as the species

Which one of the following is an ectoparasite:

The total energy from sun is trapped by producer in an ecosystem is:

In xerosere, Polytrichum and tortula represent: