BSC 340 Introductory Ecology Exam 1 questions with
accurate answers
___________ connects with other streams to become larger rivers
Ans✓✓✓ headwaters (source)
(strahler order)
___________ limits the growing season Ans✓✓✓ low temperatures
"Kidneys" of freshwaters - Ans✓✓✓ filter contaminants
• Energy emitted depends on temperature Ans✓✓✓
• The hotter the object is, the more energetic the radiation (photons) and
the shorter the λ Ans✓✓✓ Shortwave vs. longwave radiation
2nd largest and most continuous tropical rain forest Ans✓✓✓ southeast
asia
3rd largest and most continuous tropical rain forest Ans✓✓✓ w. africa
A broader geographic range includes a Ans✓✓✓ wider range of
environmental conditions
,A similar form and function can arise in unrelated organisms exposed to
similar environmental pressures Ans✓✓✓ true
Abiotic factors Ans✓✓✓ physical, chemical (air, CO2, water, light, pH,
wind, soil)
abundance Ans✓✓✓ population size, numbers
acclimation Ans✓✓✓ phenotypic changes in an individual in response
to changing environmental conditions (e.g., physiologic)
Reversible
adaptation Ans✓✓✓ the process of becoming better suited to the
environment
adaptive radiation Ans✓✓✓ the process where 1 species (ancestor)
gives rise to multiple species that exploit different features of an
environment (food, habitat)
adiabatic cooling Ans✓✓✓ decrease in air temperature through air
expansion
rate depends on moisture in the air "adiabatic lapse rate"
age for ecological definition of old growth Ans✓✓✓ 250 -750
,albedo Ans✓✓✓ describes the reflectivity of surfaces.
Alexander von Humboldt Ans✓✓✓ Plant biogeographer - ecological
gradients; Cline - e.g., changes along elevation; Prelude to biome
classification
Alfred J. Lotka Ans✓✓✓ Theoretical concepts
Population dynamics
Predator-prey models
Energetics
Thermodynamic principles to ecology
all aquatic ecosystems are linked directly or indirectly as components of
Ans✓✓✓ the hydrological cycle
all deserts differ in: Ans✓✓✓ rainfall and temp
soils and drainage (topography)
salinity (vegetation)
all ecological studies involve: Ans✓✓✓ collecting empirical data and
drawing statistical-based conclusions
All objects emit radiant energy Ans✓✓✓
, All organisms must Ans✓✓✓ assimilate energy, reproduce, and
respond to external conditions
An important factor in maintaining species is that they Ans✓✓✓
reproductive isolated (reproductive barriers)
animals Ans✓✓✓ consume (C/N/P +)
aquatic ecosystems are classified on physical and chemical environment
like: Ans✓✓✓ salinity
marine - open-water vs. coastal
fresh water - lotic vs lentic
Aristotle Ans✓✓✓ Student of Plato, tutor of Alexander the Great
Aspects of the physical environment that put the greatest constraint on
organisms ? Ans✓✓✓ climate
Atmosphere in a constant state of movement Ans✓✓✓ Rising and
sinking air masses
bacteria and fungi Ans✓✓✓ decompose (consume C/N/P +)
benthic zone Ans✓✓✓ sediments
accurate answers
___________ connects with other streams to become larger rivers
Ans✓✓✓ headwaters (source)
(strahler order)
___________ limits the growing season Ans✓✓✓ low temperatures
"Kidneys" of freshwaters - Ans✓✓✓ filter contaminants
• Energy emitted depends on temperature Ans✓✓✓
• The hotter the object is, the more energetic the radiation (photons) and
the shorter the λ Ans✓✓✓ Shortwave vs. longwave radiation
2nd largest and most continuous tropical rain forest Ans✓✓✓ southeast
asia
3rd largest and most continuous tropical rain forest Ans✓✓✓ w. africa
A broader geographic range includes a Ans✓✓✓ wider range of
environmental conditions
,A similar form and function can arise in unrelated organisms exposed to
similar environmental pressures Ans✓✓✓ true
Abiotic factors Ans✓✓✓ physical, chemical (air, CO2, water, light, pH,
wind, soil)
abundance Ans✓✓✓ population size, numbers
acclimation Ans✓✓✓ phenotypic changes in an individual in response
to changing environmental conditions (e.g., physiologic)
Reversible
adaptation Ans✓✓✓ the process of becoming better suited to the
environment
adaptive radiation Ans✓✓✓ the process where 1 species (ancestor)
gives rise to multiple species that exploit different features of an
environment (food, habitat)
adiabatic cooling Ans✓✓✓ decrease in air temperature through air
expansion
rate depends on moisture in the air "adiabatic lapse rate"
age for ecological definition of old growth Ans✓✓✓ 250 -750
,albedo Ans✓✓✓ describes the reflectivity of surfaces.
Alexander von Humboldt Ans✓✓✓ Plant biogeographer - ecological
gradients; Cline - e.g., changes along elevation; Prelude to biome
classification
Alfred J. Lotka Ans✓✓✓ Theoretical concepts
Population dynamics
Predator-prey models
Energetics
Thermodynamic principles to ecology
all aquatic ecosystems are linked directly or indirectly as components of
Ans✓✓✓ the hydrological cycle
all deserts differ in: Ans✓✓✓ rainfall and temp
soils and drainage (topography)
salinity (vegetation)
all ecological studies involve: Ans✓✓✓ collecting empirical data and
drawing statistical-based conclusions
All objects emit radiant energy Ans✓✓✓
, All organisms must Ans✓✓✓ assimilate energy, reproduce, and
respond to external conditions
An important factor in maintaining species is that they Ans✓✓✓
reproductive isolated (reproductive barriers)
animals Ans✓✓✓ consume (C/N/P +)
aquatic ecosystems are classified on physical and chemical environment
like: Ans✓✓✓ salinity
marine - open-water vs. coastal
fresh water - lotic vs lentic
Aristotle Ans✓✓✓ Student of Plato, tutor of Alexander the Great
Aspects of the physical environment that put the greatest constraint on
organisms ? Ans✓✓✓ climate
Atmosphere in a constant state of movement Ans✓✓✓ Rising and
sinking air masses
bacteria and fungi Ans✓✓✓ decompose (consume C/N/P +)
benthic zone Ans✓✓✓ sediments
