Q. Name the term which is used for the water present in the soil that can be utilized by the plants.

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Q. Name the type of water stored in the soil in the form of hydrated oxides of iron, silicon, and aluminium?

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Q. Vegetation of tropical deciduous forest falls under which of the following categories?

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Q. Genetically different population with the same physical features is known as ____________

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Q. Niche is a place where particular organisms live.

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Q. Name the group of species which exploit the abiotic and biotic resources in a similar way?

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Q. Who proposed the term ecosystem?

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Q. Name the organisms that manufacture organic compounds from simple inorganic compounds without using sunlight?

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Q. Which of the following organism eats feces?

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Q. Which of the following type of productivity counts the total fixation of energy by photosynthesis?

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Q. Hekistotherm vegetation is found in which of the following region?

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Q. Pyramid of numbers for grassland ecosystem is____________

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Q. Pyramid of number defines the individuals of each species belonging to trophic level in an ecosystem.

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Q. Which of the following statement is CORRECT about the pyramid of energy?

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Q. Which of the following has a higher assimilation efficiency?

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Q. Which of the following ecosystem consists of forest, grassland and deserts?

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Q. Mark the one, which comes under a lotic ecosystem?

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Q. Which of the following is inter-tidal zone between land and open sea?

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Q. Which of the following zone lies at the bottom of the sea?

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Q. The collection of individuals which belongs to the same species when live together in a region is known as ____________

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