Marine
Freshwater
Grassland
Pond
C. Grassland
Kashmir
Kerala
Africa
America
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
leukaemia
polio
pneumonia
haemophilia
a well developed root system
a well developed vascular system
a well developed stomatal system
a reduced vascular system
soil
locomotion of animals
rocks
crop diseases
the roots are starved
of the mechanical injury to roots
most of the aerial parts are eaten away
of the mechanical injury to branches
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
suspended hydrophyte
submerged hydrophyte
floating and anchored plant
a free floating hydrophyte
encouragement of growth of microbes to decompose sewage
disinfection of sewage
removal of heavy grit from sewage in the settling chambers
pumping of sewage into aeration tanks for increased microbial activity
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
producer - consumer - decomposer
decomposer - consumer - producer
producer - decomposer - consumer
consumer - producer - decomposer
Protozoa
Oxygen produced by plants
Sunlight
Manure in the soil
Forest prevent soil erosion
Forests act as water sheds
Forests have lots of water plants
Forests bring rainfall, in monsoon
natural geochemical cycles
the natural flora of a place
the natural wild life of a region
the natural balance of our environment
when both organisms are benefited
when one organism is benefited without affecting the other
when one organism is affected
when both organisms are affected
Lichens
Algae
Fungus
Fems
the flora on land
the flora in ocean
a community of organisms interacting with each other
that part of earth and its atmosphere which inhabits living organisms
green plants systhesize food
the green plants eat everything
they are fixed at a place
none of these
Himachal Pradesh
Haryana
Tamil Nadu
Assam
Adaptation
Acclimatisation
Colonisation
All the above
a food chain
genetic drift
ecological succession trend
a phylogenetic trend
Nitrosomonas
Azotobacter
Nitrobacter
Closteridium
Taiga ecosystem
Tundra ecosystem
Savannah ecosystem
Tropical rainforest
Darwin's birthday
World hygiene day
World environment day
World population day
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
decomposition of animals and plants by bacteria
photosynthesis by green plants
fermentation of sugars
sun-light
Typha latifolia
Cyperus rotundus
Parthenium
Eichhornia
CO
Hydrocarbons
Marine
Freshwater
Grassland
Pond
loam soil
clay soil
sandy soil
poeaty soil