KSU Biology 198 Exam 2 Actual study
with Questions and correct/verified
Answers
Ecology - ANSW-The study of interactions between life forms and their environment.
Ecosystem - ANSW-All living organisms in an environment plus the physical and chemical environments
in which they live.
GPP (Gross Primary Productivity) - ANSW-All the sunlight that hits a given area, primary producers use it
to grow and reproduce, then converted to NPP
NPP - ANSW-The usable energy left over for consumers is called ____. It helps determine how many
trophic levels an ecosystem can hold.
Entropy - ANSW-Randomness
Second - ANSW-______ Law of Thermodynamics: as energy is passed on (converted) some is lost as heat.
This increases entropy.
Nutrients - ANSW-What is cycled in biogeochemical cycles?
Nutrients - ANSW-_______ could not cycle if energy was not present.
Autotroph - ANSW-A _______ is a producer, meaning it makes its own "food" by converting energy into a
usable form for the consumers to use. Nutrients could not cycle without this energy flow.
Heterotroph - ANSW-A ________ is a consumer. If it didn't consume producers, no nutrients would be
passed on.
Producer - ANSW-An organism that makes its own food.
Decomposer - ANSW-An organism that breaks down dead and decaying organisms.
Consumer - ANSW-An organism that eats other organisms to gain energy.
Trophic - ANSW-A ______ level groups organisms into how much energy is available to them and how
much they have.
Food Chain - ANSW-The linear relationships of feeding.
Food Web - ANSW-All relationships in regard to eating habits. Includes decomposers.
rainforest - ANSW-What biome has the highest NPP?
Population - ANSW-a group of the same species living within the same area.
age structure - ANSW-Scientists study __________ because the proportion of individuals in "childbearing
age" is directly related to the grown of the population.
, Sex Ratio - ANSW-The idea that if there are more men than women, less babies will be born. Where as if
there were more women, more babies would be born and the population would be able to grow and
survive.
Population Distribution - ANSW-The idea that if a species exists in several different areas, then the
species will be very successful is called ___________.
Per Capita growth rate - ANSW-=b-d
how many individuals are added to the population per individual already living.
exponential - ANSW-G=rN is the equation for __________ growth
Carrying Capacity - ANSW-_________ limits the population growth. Logistic growth hits carrying capacity
and the population levels off.
Logistic Curve - ANSW-A ___________ describes the growth of a population when the effects of the
carrying capacity can be seen. something is limiting the population size, the amount of NPP available.
G=rN(K-N/K)
When it reaches carrying capacity, no more growth occurs.
Density-dependent - ANSW-Examples of this kind of factor includes biological, predation, inter and intra
specific competition, accumulation of waste.
Density-independent - ANSW-Density-________ factors influence morality in a population regardless of
population density. These are physical or chemical (abiotic factors) such as natural disasters.
1 - ANSW-High death rate in older organisms is a Type ___ Survivorship.
2 - ANSW-High death rate in all ages of organisms is a Type ___ Survivorship.
3 - ANSW-High death rate in younger organisms is a Type ___ Survivorship.
Interspecific - ANSW-A ___________ interaction is between different species.
intraspecific - ANSW-A ___________ interaction is between the same species. It helps with population
growth because it can cause reproduction but also competition.
Abiotic - ANSW-___________ factors are non-living influences on the organisms and their environment
(i.e. temperature, ph, sunlight)
adaptive traits - ANSW-competition evolves, helps maximize an organisms reproductive success
patterns of population growth - ANSW-exponential: no carrying capacity, J shaped.
logistic: has hit carrying capacity so population does not grow anymore. S shaped.
Niche - ANSW-A specific area where an organism inhabits the role or function of an organism.
Coevolution - ANSW-________ is when genetic change in one species causes a subsequent change in the
genetic structure of another species.
with Questions and correct/verified
Answers
Ecology - ANSW-The study of interactions between life forms and their environment.
Ecosystem - ANSW-All living organisms in an environment plus the physical and chemical environments
in which they live.
GPP (Gross Primary Productivity) - ANSW-All the sunlight that hits a given area, primary producers use it
to grow and reproduce, then converted to NPP
NPP - ANSW-The usable energy left over for consumers is called ____. It helps determine how many
trophic levels an ecosystem can hold.
Entropy - ANSW-Randomness
Second - ANSW-______ Law of Thermodynamics: as energy is passed on (converted) some is lost as heat.
This increases entropy.
Nutrients - ANSW-What is cycled in biogeochemical cycles?
Nutrients - ANSW-_______ could not cycle if energy was not present.
Autotroph - ANSW-A _______ is a producer, meaning it makes its own "food" by converting energy into a
usable form for the consumers to use. Nutrients could not cycle without this energy flow.
Heterotroph - ANSW-A ________ is a consumer. If it didn't consume producers, no nutrients would be
passed on.
Producer - ANSW-An organism that makes its own food.
Decomposer - ANSW-An organism that breaks down dead and decaying organisms.
Consumer - ANSW-An organism that eats other organisms to gain energy.
Trophic - ANSW-A ______ level groups organisms into how much energy is available to them and how
much they have.
Food Chain - ANSW-The linear relationships of feeding.
Food Web - ANSW-All relationships in regard to eating habits. Includes decomposers.
rainforest - ANSW-What biome has the highest NPP?
Population - ANSW-a group of the same species living within the same area.
age structure - ANSW-Scientists study __________ because the proportion of individuals in "childbearing
age" is directly related to the grown of the population.
, Sex Ratio - ANSW-The idea that if there are more men than women, less babies will be born. Where as if
there were more women, more babies would be born and the population would be able to grow and
survive.
Population Distribution - ANSW-The idea that if a species exists in several different areas, then the
species will be very successful is called ___________.
Per Capita growth rate - ANSW-=b-d
how many individuals are added to the population per individual already living.
exponential - ANSW-G=rN is the equation for __________ growth
Carrying Capacity - ANSW-_________ limits the population growth. Logistic growth hits carrying capacity
and the population levels off.
Logistic Curve - ANSW-A ___________ describes the growth of a population when the effects of the
carrying capacity can be seen. something is limiting the population size, the amount of NPP available.
G=rN(K-N/K)
When it reaches carrying capacity, no more growth occurs.
Density-dependent - ANSW-Examples of this kind of factor includes biological, predation, inter and intra
specific competition, accumulation of waste.
Density-independent - ANSW-Density-________ factors influence morality in a population regardless of
population density. These are physical or chemical (abiotic factors) such as natural disasters.
1 - ANSW-High death rate in older organisms is a Type ___ Survivorship.
2 - ANSW-High death rate in all ages of organisms is a Type ___ Survivorship.
3 - ANSW-High death rate in younger organisms is a Type ___ Survivorship.
Interspecific - ANSW-A ___________ interaction is between different species.
intraspecific - ANSW-A ___________ interaction is between the same species. It helps with population
growth because it can cause reproduction but also competition.
Abiotic - ANSW-___________ factors are non-living influences on the organisms and their environment
(i.e. temperature, ph, sunlight)
adaptive traits - ANSW-competition evolves, helps maximize an organisms reproductive success
patterns of population growth - ANSW-exponential: no carrying capacity, J shaped.
logistic: has hit carrying capacity so population does not grow anymore. S shaped.
Niche - ANSW-A specific area where an organism inhabits the role or function of an organism.
Coevolution - ANSW-________ is when genetic change in one species causes a subsequent change in the
genetic structure of another species.
