A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as ______________.
A. Ecological pyramid
B. Pyramid of biomass
C. Pyramid of number
D. Pyramid of energy
Author: Aroma Ann
The Anthrax disease is caused by ____________.
A. Virus
B. Bacteria
C. Protozoa
D. Helminthes
Bio gas generation is mainly based on the principle of ______________.
A. Fermentation
B. Degradation
C. Purification
D. Sedimentation
______________ is mixed with petrol for being used in automobiles.
A. Gasohol
B. Methanol
C. Propanol
D. Ethanol
Energy transformation through the food chain is ____________.
A. Regular
B. Comfortable
C. Proposed
D. Inefficient
Which of the following ecological pyramid is always upright?
A. Pyramid of energy
B. Pyramid of number
C. Pyramid of biomass
D. None of these
Which of the following groups is absolutely essential functional component of the ecosystem?
A. Producers
B. Producers and herbivores
C. Producers and detritivores
D. Detritivores
The formation of a climax community from an abandoned farm land is a an example of _______________.
A. Autogenic succession
B. Allogenic succession
C. Primary succession
D. Secondary succession
In recycling of mineral elements within an ecosystem, the responsible direct acing organism are called _____________.
A. Decomposers
B. Producers
C. Primary consumers
D. Secondary consumers
Which of the following weather elements always decreases as we climb upward in the atmosphere?
A. Wind
B. Temperature
C. Pressure
D. Moisture
E. All of the above
