Which one of the following is commonly found in temperate coniferous forest
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____ is the rate of production of organic matter by consumers.
Major source of sulphur is
Consider the following statements conerning food chains (i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation (ii) Removal of most of the carnivores resulted in an increased population of deers (iii) The length of food chains is generally limited to 3 - 4 trophic levels due to energy loss (iv) The length of food chains may vary from 2 to 8 trophic levels Which two of the above statements are correct?
Assertion: During an ecological succession, the number of species increases, the community biomass increases and the community's ratio of respiration to photosynthesis also increases.
Drawback of DDT as pesticide is
In a biotic community , primary consumers are
Read the given statements and select the correct option. Statement 1: Herbivours are also called as first order consumers. Statement 2: Herbivores obtain their food directly from plants.
Which of the following organisms in the given food web act both as apredator and a prey?