a food chain
trophic levels
food webs
ecosystem
C. food webs
leutic
benthic
pelagic
none of these
producers
producers and consumers
decomposers and producers
producers, consumers and decomposers
a part of the earth and its atmosphere which inhabits livings organisms
a community of organisms interacting with each other
the fauna and flora on land
the fauna and flora on ocean
plants only
animals only
organisms linked in food chains
all of these
hydrophytes
mesophytes
xerophytes
halophytes
primary producer
carnivorous secondary consumer
herbivorous
a decomposers
commensalism
symbiosis
mutualism
cooperation
it contains timber trees
it harbours lions
it harbours elephants
it contains rare animals and plants
mutualism
commensalism
predatism
parasitism
chemical factors of soil which affect life
physical factors of soil which affect life
all living organisms which influence other organisms
factors of atmosphere which affect life
predator
prey
host
parasite
arboreal
cursorial
benthos
xeric
Ecotype
Littoral
Ecotone
Both and
plants only
animals only
carnivorous animals only
organisms linked in food-chains
Allopatric
Autogenic
Sympatric
Allogenic
air and water
water and smoke
smoke and fog
fire and water
methyl isocyanide
phenyl isocyanide
ethylene
acetylene
biosphere
biome
community
ecosystem
mortality
natality
both and
none of these
Tokyo
New York
Calcutta
Mexico
Fly ash
Hydrocarbon gases
CO
Grass > Wolf �Deer -^Buffalo
Grass � Snake �Insect �Deer
Grass -�Insect >Birds >Snake
Bacteria ->Grass ~>Rabbit -�Wolf
primary producers is larger than that of primary consumers
secondary consumers is the largest because they are most powerful
primary consumers is the least dependent upon primary producers.
primary consumers outnumber primary producers
lung diseases
bone cancer
leukaemia
skin cancer
environment
individual
specific species
plant community
Soil structure
Wind
Temperature
Climate
limited to industrial areas
presence of large quantity of SO^2 in the atmosphere
a natural phenomenon
presence of CO^2 in the atmosphere
soil
rocks
animal diseases
locomotion of animals
CO
Fluorides
producers
primary consumers
secondary consumers
top consumers in the food-chain