Competition for food, light and space is most severe in
closely related species growing in the same niche
closely related species growing in different habitats
distantly related species growing in same habitat
distantly related species growing in different habitats
- . Biome is
- Increasing accumulation of DDT in organisms of a food chain in higher trophic levels is known as
- First link in any food chain is green plant because
- Hie sequence blue green algae > crustose lichens » foliose lichens > mosses » shrubs » dicotyledonous…
- Biosphere is:
- Which one of the following is associated with the conservation of forest ?
- Tropical evergreen forests are seen in
- Mark which is true
- Correct definition of ecosystem is :
- The least porous soil among the following is
- The ultimate source of energy for fish is
- An American plant which had become a troublesome weed in India is
- Biologists celebrate 5th June as
- Smog is a common pollutant in places having
- Soil particles arranged in order of increasing size are
- One of these is a renewable source of energy:
- Competition for food, light and space is most severe in
- Radiation is a health hazard as it causes
- Carbon cycle includes
- Which is the correct food chain
- The best indicator of SO^2 pollution is
- Which of the following functions performed by forests help most in controlling drought
- What will happen if our water resources are continued to be polluted by industrial wastes
- Water plants usually have
- The source of energy in the ecosystem is:
- Laterization is a process which results in the
- Deforestation may reduce the chances of
- A habitat of long severe winters and growing season limited to a few months of summer constitutes
- Vegetation in Delhi is predominantly
- Primary treatment of sewage means