PCB 3044 EXAM 4 TEST REVIEW QUESTIONS
WITH CORRECT ANSWERS
which |successional |usually |have |the |highest |levels |of |NPP |- |CORRECT |ANSWER✔✔-mid |
successional |stages
what |locations |have |highest |amount |of |primary |production? |why? |- |CORRECT |ANSWER✔✔-
tropical |forest, |boreal |forest. |controlled |by |rate |of |photo |and |leaf |area |index |(leaf |area |of |
plants |per |unit |ground |area)
how |is |primary |production |measured? |- |CORRECT |ANSWER✔✔-amount |of |carbon |in |the |
system
what |is |GPP |- |CORRECT |ANSWER✔✔-amount |of |carbon |fixed |by |autotrophic |organisms |in |an |
ecosystem. |controlled |by |rate |of |photo. |and |leaf |area |index
what |is |NPP |- |CORRECT |ANSWER✔✔-energy |produced |by |autotrophs |and |forced |as |biomass. |
NPP=GPP-RESPIRATION |
(energy |used |for |plant |growth, |reproduction, |secondary |compounds, |consumption |by |
herbivores |and |detrivores)
Carbon |Source |- |CORRECT |ANSWER✔✔-GPP<RESPIRATION
Carbon |Sink |- |CORRECT |ANSWER✔✔-GPP>RESPIRATION
What |systems |have |highest |consumption |rates |of |primary |production? |- |CORRECT |
ANSWER✔✔-aquatic |systems;
, what |is |bottom |up |control |- |CORRECT |ANSWER✔✔-greater |availability |of |limiting |resources |
increases |primary |production
what |is |top |down |control |- |CORRECT |ANSWER✔✔-rates |of |consumption |by |predators |at |the |
highest |trophic |levels |determine |species |composition |and |abundance |at |lower |trophic |levels, |
which |determined |rates |of |primary |production.
factors |controlling |number |of |trophic |levels |in |an |ecosystem |- |CORRECT |ANSWER✔✔-1) |
addition/loss |of |species
2) |amount |of |NPP
3) |freq. |of |disturbances/agents |of |change
4) |size |of |ecosystem
what |is |secondary |production |- |CORRECT |ANSWER✔✔-energy |acquired |by |consuming |other |
organisms
what |is |net |secondary |production |- |CORRECT |ANSWER✔✔-ingestion-cellualar |respiration-
egestion |(ICE)
depends |on |rate |of |metabolism.
what |is |egestion |- |CORRECT |ANSWER✔✔-carbon |lost |through |respiration/waste |products
what |is |a |detritus |- |CORRECT |ANSWER✔✔-freshly |dead |or |partially |decomposed |remains |of |an
|organism
what |is |a |primary |producer |- |CORRECT |ANSWER✔✔-organism |that |produces |its |own |food |by |
photo. |or |chem.
WITH CORRECT ANSWERS
which |successional |usually |have |the |highest |levels |of |NPP |- |CORRECT |ANSWER✔✔-mid |
successional |stages
what |locations |have |highest |amount |of |primary |production? |why? |- |CORRECT |ANSWER✔✔-
tropical |forest, |boreal |forest. |controlled |by |rate |of |photo |and |leaf |area |index |(leaf |area |of |
plants |per |unit |ground |area)
how |is |primary |production |measured? |- |CORRECT |ANSWER✔✔-amount |of |carbon |in |the |
system
what |is |GPP |- |CORRECT |ANSWER✔✔-amount |of |carbon |fixed |by |autotrophic |organisms |in |an |
ecosystem. |controlled |by |rate |of |photo. |and |leaf |area |index
what |is |NPP |- |CORRECT |ANSWER✔✔-energy |produced |by |autotrophs |and |forced |as |biomass. |
NPP=GPP-RESPIRATION |
(energy |used |for |plant |growth, |reproduction, |secondary |compounds, |consumption |by |
herbivores |and |detrivores)
Carbon |Source |- |CORRECT |ANSWER✔✔-GPP<RESPIRATION
Carbon |Sink |- |CORRECT |ANSWER✔✔-GPP>RESPIRATION
What |systems |have |highest |consumption |rates |of |primary |production? |- |CORRECT |
ANSWER✔✔-aquatic |systems;
, what |is |bottom |up |control |- |CORRECT |ANSWER✔✔-greater |availability |of |limiting |resources |
increases |primary |production
what |is |top |down |control |- |CORRECT |ANSWER✔✔-rates |of |consumption |by |predators |at |the |
highest |trophic |levels |determine |species |composition |and |abundance |at |lower |trophic |levels, |
which |determined |rates |of |primary |production.
factors |controlling |number |of |trophic |levels |in |an |ecosystem |- |CORRECT |ANSWER✔✔-1) |
addition/loss |of |species
2) |amount |of |NPP
3) |freq. |of |disturbances/agents |of |change
4) |size |of |ecosystem
what |is |secondary |production |- |CORRECT |ANSWER✔✔-energy |acquired |by |consuming |other |
organisms
what |is |net |secondary |production |- |CORRECT |ANSWER✔✔-ingestion-cellualar |respiration-
egestion |(ICE)
depends |on |rate |of |metabolism.
what |is |egestion |- |CORRECT |ANSWER✔✔-carbon |lost |through |respiration/waste |products
what |is |a |detritus |- |CORRECT |ANSWER✔✔-freshly |dead |or |partially |decomposed |remains |of |an
|organism
what |is |a |primary |producer |- |CORRECT |ANSWER✔✔-organism |that |produces |its |own |food |by |
photo. |or |chem.
