An ecosystem is the basic ecological unit in which living organisms interact among themselves and with their surrounding physical environment.
The term ecosystem was proposed by Sir A.G. Tansley in the year 1935.
A.G. Tansley first used the word ecosystem in his well-known paper on vegetational concepts and terms.
The word 'biocoenosis' was used before that.
English
80 Questions
160 Marks
60 Mins English English20 Questions40 Marks12 Mins English English80 Questions160 Marks60 Mins EnglishMatch the fish species given in List - I with their type of food habits in pond in List - II.
Select the correct answer using the codes given below:
Which of the following is an artificial ecosystem?
Environmental Impact Assessment (EIA) involves several stages, and each stage is equally important in determining the overall performance of a project. Arrange the following stages in the correct chronological order:
Scoping
Impact Analysis
Screening
Mitigation
____________ is the phenomenon of movement of a species from its own habitat to some other habitat for a particular time period every year for a specific purpose like breeding.
Which of the following organisms can initiate ecological succession even in bare rocks?
What is a population (or subspecies or race) that is adapted to local environmentalconditions called?
Who mentioned ecosystem as 'the basic unit in ecology' in 1956?
In a forest ecosystem of Grass → Impala → Hyena, if all the Hyena are taken away, what will happen ultimately?
The increased concentration of suspended solids in water and their accumulation onbottoms where they are undesirable, creates what kind of water pollution?
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