the roots are starved
of the mechanical injury to roots
most of the aerial parts are eaten away
of the mechanical injury to branches
A. the roots are starved
ozone
carbon monoxide and oxides of sulphur
hydrocarbons and hot air
algae spores and marsh gas
Lichens
Algae
Fungus
Fems
Adaptation
Acclimatisation
Colonisation
All the above
Solar energy
Hydro-power
Natural gas
All of these
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
decomposition of animals and plants by bacteria
photosynthesis by green plants
fermentation of sugars
sun-light
storage water
capillary water
field capacity
gravitational water
Nitrogen
Carbon
Phospnorus
Oxygen
a well developed root system
a well developed vascular system
a well developed stomatal system
a reduced vascular system
when both organisms are benefited
when one organism is benefited without affecting the other
when one organism is affected
when both organisms are affected
A food chain is a chain of food consumers
A food chain is chain of food producers
A food chain is a series of organisms through which food energy flows in an ecosystem
None of the above
suspended hydrophyte
submerged hydrophyte
floating and anchored plant
a free floating hydrophyte
A community of organisms interacting with one another
The abiotic component of a habitat
The part of the earth and its atmosphere which inhabits living organisms
The community of organisms together with environment in which they live
producer - consumer - decomposer
decomposer - consumer - producer
producer - decomposer - consumer
consumer - producer - decomposer
purification of water
formation of soil
sterilization of soil
degradation of soil
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
Forest prevent soil erosion
Forests act as water sheds
Forests have lots of water plants
Forests bring rainfall, in monsoon
grass � wolf > deer > buffalo
bacteria � grass � rabbit > wolf
grass � insect � bird � snake
grass > snake �insect � deer
Kashmir
Kerala
Africa
America
green plants systhesize food
the green plants eat everything
they are fixed at a place
none of these
Protozoa
Oxygen produced by plants
Sunlight
Manure in the soil
a food chain
genetic drift
ecological succession trend
a phylogenetic trend
In which individuals interact with each other
In which life originated
The name of a bird
Organic compound by which life diminih
Himachal Pradesh
Haryana
Tamil Nadu
Assam
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
sand-silt and clay
silt-sand and clay
clay-sand and silt
clay-silt and sand
natural geochemical cycles
the natural flora of a place
the natural wild life of a region
the natural balance of our environment
upright
inverted
upright or inverted
none of these
biotic potential
biotic component
biological value
biological amplification
Succulents
Heterophyllous
Herbaceous
Viviparous