KSU BIOL 198 EXAM 2 QUESTIONS
100% ACCURATE
, Ecology - ANSWERStudy of living organisms and their interactions with each other and
with their environment.
Ecosystem ecology - ANSWERStudy of how organisms interact with their biotic (living)
and abiotic (nonliving) environments
BLANK flows through an ecosystem and BLANK cycles within an ecosystem. -
ANSWEREnergy, nutrients
Ecosystem - ANSWERComposed of all populations of all the organisms of an area, plus
the physical environment in which they live
What role does photosynthesis play in ecosystem functions? - ANSWER- the laws of
thermodynamics
- solar energy is trapped and converted to chemical energy (and thus powers an
ecosystem) when many of its inhabitants gain nutrients via photosynthesis
1st law of thermodynamics - ANSWEREnergy can not be created or destroyed
2nd law of thermodynamics - ANSWERWith the transfer of energy, some is lost as heat.
Because heat is just random molecular movements, the transformations of other forms
of energy into heat constitutes a net increase in the randomness of the universe.
Producer - ANSWERPhotosynthetic organisms - able to convert solar energy into
chemical energy.
Consumer - ANSWER- primary: feed directly on producers
- secondary: feed directly on primary
- tertiary
- they are organisms that need to consume other organisms
Autotroph - ANSWERPhotosynthetic and chemosynthetic organisms because they
produce their own food from inorganic materials (they don't eat other organisms) AUTO
Heterotrophs - ANSWEROrganisms that do need to consume other organisms for
energy. Consumers. Anything above producer level.
Food chain vs food web - ANSWERFood chain: what eats what.
Food web: interactions of all the things, much more detailed and complex
Detritivore - ANSWER-consumers who get their energy from dead or discarded organic
matter
- heterotrophs
100% ACCURATE
, Ecology - ANSWERStudy of living organisms and their interactions with each other and
with their environment.
Ecosystem ecology - ANSWERStudy of how organisms interact with their biotic (living)
and abiotic (nonliving) environments
BLANK flows through an ecosystem and BLANK cycles within an ecosystem. -
ANSWEREnergy, nutrients
Ecosystem - ANSWERComposed of all populations of all the organisms of an area, plus
the physical environment in which they live
What role does photosynthesis play in ecosystem functions? - ANSWER- the laws of
thermodynamics
- solar energy is trapped and converted to chemical energy (and thus powers an
ecosystem) when many of its inhabitants gain nutrients via photosynthesis
1st law of thermodynamics - ANSWEREnergy can not be created or destroyed
2nd law of thermodynamics - ANSWERWith the transfer of energy, some is lost as heat.
Because heat is just random molecular movements, the transformations of other forms
of energy into heat constitutes a net increase in the randomness of the universe.
Producer - ANSWERPhotosynthetic organisms - able to convert solar energy into
chemical energy.
Consumer - ANSWER- primary: feed directly on producers
- secondary: feed directly on primary
- tertiary
- they are organisms that need to consume other organisms
Autotroph - ANSWERPhotosynthetic and chemosynthetic organisms because they
produce their own food from inorganic materials (they don't eat other organisms) AUTO
Heterotrophs - ANSWEROrganisms that do need to consume other organisms for
energy. Consumers. Anything above producer level.
Food chain vs food web - ANSWERFood chain: what eats what.
Food web: interactions of all the things, much more detailed and complex
Detritivore - ANSWER-consumers who get their energy from dead or discarded organic
matter
- heterotrophs
