Xerophytes are organisms that:
are adapted to drought and environmental water shortage
with a narrow range tolerance to an ecological factor
with a constant temperature not depending on environment temperature
with a large range tolerance to an ecological factor
form one population that inhabits only a small area
Stenobionts are organisms with:
a narrow range tolerance to an ecological factor
a large range tolerance to an ecological factor
a constant temperature of their body
a body temperature depending on environment temperature
one population that inhabits only a small area
Ecological factor that limits viability of organisms is:
critical
stress
optimal
favorable
effective
Eyrobionts are organisms with:
a large range tolerance to an ecological factor are called
one population that inhabits only a small area
a narrow range tolerance to an ecological factor
a constant temperature of their body
a body temperature depending on environment temperature
Tolerance is:
limits of organisms stability to effect of ecological factors
response of an organism to excess of any ecological factor
optimal conditions for metabolism of living organisms
minimum of factors available to organisms life
adaptation to a particular environment
Regularity that suggests that each environmental factor has limits of its positive influence on the organism is described by:
Shelford’s principle of tolerance limits
Liebig’s law of the minimum
Vernadsky’s study about biosphere
Commoner’s ecological law
Lindeman’s rule of 10%
Regularity that suggests that organism growth is limited by the resource in the shortest supply is described by:
Liebig’s law of the minimum
Shelford’s principle of tolerance limits
Vernadsky’s study about biosphere
Commoner’s ecological law
Darwin’s theory of evolution
The earth’s biomes are controlled primarily by:
temperature and precipitation
soil and species diversity
soil and rainfall
species diversity and temperature
humidity and species diversity
Biotic factors in an ecosystem can include:
pollination of flowers by insects
temperature and humidity
speed and direction of the wind
tidal and annual rhythms
relief and soil composition
Abiotic factors in an ecosystem can include:
sunlight
plants
animals
microorganisms
fungi
Succession is a process where:
a community changes over time
a dominant male is replaced by a subordinate
energy moves through a food web
nutrients are recycled
organisms are adapted to environment
A community includes:
all the populations in an area
all living factors of an environment
all parts of the earth where life exists
all the members of one species
all nonliving factors in an environment
Ecosystem is:
an ecological unit that includes biotic and abiotic factors
the sum of all nonliving parts of an area that are interrelated
all the organisms which interact each other
all the populations in an area
an ecological niche of living organism
The term "Ecosystem" was introduced by:
Tansley
Vernadsky
Heckel
Suess
Commoner
A position of an organism defined by its role in a biological community:
niche
habitat
ecosystem
biome
environment
The physical area in which an organism lives is its:
habitat
ecosystem
ecological niche
trophic level
environment
Structure and functions of biosphere is studied by:
global ecology
synecology
autecology
demecology
social ecology
Synecology - is a section of ecology that studies:
changes of communities over time
biological diversity
adaptations of organisms
evolution processes of organisms
common characteristics of populations in an ecosystem
Demecology - is a section of ecology that studies:
common characteristics of populations in an ecosystem
influence of pollution to living organisms
biotic relationships in a community
adaptations of organisms to environment
formation of new species
Autecology- is a section of ecology that studies an effect of environmental factors to:
individual organisms
formation of new species
characteristics of populations
functional groups of an ecosystem
biotic relationships in a community
Ecological law "Nature knows better" was proposed by:
Commoner
Heckel
Liebig
Vernadsky
Shelford
Environment is:
outside the organism in which an organism lives and which affects it
all parts of the earth where life exists
a condition of balance between organism and its surrounding
biotic relationships between individuals
a large area identified by the presence of dominant plants and animals
Ecology is a science that studies:
interaction between organisms and environment
pollution of environment
life on the earth
social problems
climatic changes
The term "Ecology" was introduced by:
Heckel
Vernadsky
Commoner
Liebig
Shelford