Which one of the following is not a bioindicator of water pollution?
Which one of the following is not a bioindicator of water pollution? Options (a) Blood-worms (b) Stone flies (c) Sewage…
7 years ago
Memory
The slow rate of decomposition of fallen logs in nature is due to their
The slow rate of decomposition of fallen logs in nature is due to their Options (a) low moisture content (b)…
7 years ago
Mass of living matter at a trophic level in an area at any time is called
Mass of living matter at a trophic level in an area at any time is called Options (a) standing crop…
7 years ago
Which one of the following is a primary consumer in maize field ecosystem?
Which one of the following is a primary consumer in maize field ecosystem? Options (a) Lion (b) Grasshopper (c) Wolf…
7 years ago
The two gases making highest relative contribution to the greenhouse gases are
The two gases making highest relative contribution to the greenhouse gases are Options (a) CO2 and CH4 (b) CH4 and…
7 years ago
The bacterium Bacillus thuringiensis is widely used in contemporary biology as
The bacterium Bacillus thuringiensis is widely used in contemporary biology as Options (a) insecticide (b) agent for production of dairy…
7 years ago
Which one of the following is not a gaseous biogeochemical cycle in ecosystem ?
Which one of the following is not a gaseous biogeochemical cycle in ecosystem ? Options (a) Sulphur cycle (b) Phosphorus…
7 years ago
The rate of formation of new organic matter by rabbit in a grassland, is called
The rate of formation of new organic matter by rabbit in a grassland, is called Options (a) net productivity (b)…
7 years ago
Which one of following pairs of gases are the major cause of Greenhouse effect
Which one of following pairs of gases are the major cause of Greenhouse effect Options (a) CO2 and O3 (b)…
7 years ago
Which one of the following is one of the characteristics of a biological
Which one of the following is one of the characteristics of a biological community? Options (a) Stratification (b) Natality (c)…
7 years ago