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Consider the pyramid of energy of an ecosystem given below : If T4 is equivalent to 1000 J, what is the value of T1?
What is incorrect about ecosystem?
Given below are two statements Statement I: The rate of decomposition is not related to chemical composition of detritus and climatic factors. Statement II: In a particular climatic condition, decomposition rate is faster if detritus is rich in lignin and chitin. In light of the above statements, choose the correct answer from the options given below:
Match List-I with List-II: List-I A. Tertiary consumer B. Secondary consumer C. Primary consumer D. Primary producer List-II I. Grass II. Lion III. Wolf IV. Goat
In an ecosystem, if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m−2) yr−1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
Which of the following is the unit of productivity of an ecosystem?
Given below are two statements: Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers. Statement II: Ecosystems are exempted from 2nd law of thermodynamics. In the light of the above statements, choose the most appropriate answer from the options given below:
Who is known as the father of Ecology in India?
Given below are two statements: Statement I: The primary source of energy in an ecosystem is solar energy. Statement II: The rate of production of organic matter photosynthesis in an ecosystem is called net primary productivity (NPP). In the light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements: Statement I: Rain forests, which used to cover more than 14% of the earth's land surface, are now reduced to 6%. Statement II: The Amazon rain forest has the greatest biodiversity on earth. In light of the above statements, choose the correct answer from the options given below:
Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?
Which of the following is not a method of ex situ conservation?
The decline in the population of Indian native fishes due to the introduction of Clarias gariepinus in river Yamuna can be categorised as:
Which of the following is the most important cause for animals and plants being driven to extinction?
Which one of the following is not a method of in situ conservation of biodiversity?
The Earth Summit held in Rio de Janeiro in 1992 was called:
In the following, in each set, a conservation approach and an example of a method of conservation are given: (a) In situ conservation — Biosphere Reserve (b) Ex situ conservation — Wildlife Safari Park (c) In situ conservation — Seed bank (d) Ex situ conservation — National park Select the correctly matched sets:
According to the observations of Alexander von Humboldt, what is the relationship between species richness and the area explored?
According to Robert May, global species diversity is about:
Which of the following regions of the globe exhibits the highest species diversity?