Animals which live at the bottom of the sea are called
leutic
benthic
pelagic
none of these
Correct Answer :
B. benthic
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Animals in cold regions have fur because
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hairs trap air which acts as insulator
they like fur
none of these
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producers and consumers
consumers only
decomposers only
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CO
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Grass > Wolf �Deer -^Buffalo
Grass � Snake �Insect �Deer
Grass -�Insect >Birds >Snake
Bacteria ->Grass ~>Rabbit -�Wolf
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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
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plants only
animals only
carnivorous animals only
organisms linked in food-chains
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A.G. Tansely
H.T. Odum
Karl Mobius
None of these
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natality
both and
none of these
Bio tic factors are
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
Smog is a combination of
air and water
water and smoke
smoke and fog
fire and water
Animals which live at the bottom of the sea are called
leutic
benthic
pelagic
none of these
Some animals have a constant high body temperature. This is because
they like this temperature
they can work fast in the temperature
they prefer to live in cold region
they are active animals
The total interacting animals and plants in any well defined area which as field or a pond is known as
biosphere
biome
community
ecosystem
An association between two or more species in which both are benefited is known as
commensalism
symbiosis
mutualism
cooperation
Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
mutualism
commensalism
symbiosis
parasitism
Species that occur in different geographical regions separated by special barriers are
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Autogenic
Sympatric
Allogenic
Desert animals are called
arboreal
cursorial
benthos
xeric
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bone cancer
leukaemia
skin cancer
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environment
individual
specific species
plant community
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methyl isocyanide
phenyl isocyanide
ethylene
acetylene
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greater
lesser
the same
very small
When a big fish eats a small fish, which eats water fleas supported by phyto-plankton, the water-fleas are
producers
primary consumers
secondary consumers
top consumers in the food-chain
In a food-chain, the saprophytic organisms are
producers
consumers
predators
decomposers
The total set of feeding relationships in a biotic community is called
a food chain
trophic levels
food webs
ecosystem
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Fly ash
Hydrocarbon gases
CO
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food web
pyramid of numbers
pyramid of succession
none of these
A pond is
a biome
a natural ecosystem
an artificial ecosystem
a community of plants and animals
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hydrophytes
mesophytes
xerophytes
halophytes
Trophic levels are formed by
plants only
animals only
organisms linked in food chains
all of these
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light received from sun
heat liberated during respiration
heat liberated during fermentation
none of these