ECOLOGY FINAL EXAM WITH
CORRECT ANSWERS
Ecology - CORRECT ANSWER-scientific study of interactions
among organisms and between organisms and their
environment
Species - CORRECT ANSWER-A population or group of
populations whose members have the potential to interbreed in
nature and produce viable, fertile offspring
Keystone species - CORRECT ANSWER-a species that
influences the survival of many other species in an ecosystem
dominant species - CORRECT ANSWER-those species in a
community that are the most abundant or that collectively have
the highest biomass
Disturbance - CORRECT ANSWER-A discrete event that
disrupts an ecosystem or community. Examples of natural
disturbances include fires, hurricanes, tornadoes, droughts, and
floods. Examples of human-caused disturbances include
deforestation, overgrazing, and plowing.
primary succession - CORRECT ANSWER-an ecological
succession that begins in an area where no biotic community
previously existed
secondary succession - CORRECT ANSWER-succession on a
site where an existing community has been disrupted
, extirpation - CORRECT ANSWER-the extinction of a species
from specific geographic areas
extinction - CORRECT ANSWER-disappearance of a species
from all parts of its geographical range
primary productivity - CORRECT ANSWER-synthesis of
organic materials by green plants using the energy captured in
photosynthesis
secondary productivity - CORRECT ANSWER-The rate at
which consumer convert chemical energy from their food into
their own biomass
GPP - CORRECT ANSWER-Gross primary productivity
NPP - CORRECT ANSWER-The Gross Primary Productivity
minus the respiration rate of autotrophs is equal to
biodiveristy - CORRECT ANSWER-the vairety of organisms
considered at all levels from populations to ecosystems.
biological oxygen demand - CORRECT ANSWER-the amount
of oxygen needed by microorganisms to decompose biological
wastes into carbon dioxide, water, and minerals.
acid precipitation - CORRECT ANSWER-rain containing acids
that form in the atmosphere when industrial gas emissions
(especially sulfur dioxide and nitrogen oxides) combine with
water
energy budgets - CORRECT ANSWER-all gains of incoming
energy and all losses of outgoing energy in a system (Earth)
SLOSS - CORRECT ANSWER-Single Large or Several Small.
A reserve should be large enough to support viable populations
CORRECT ANSWERS
Ecology - CORRECT ANSWER-scientific study of interactions
among organisms and between organisms and their
environment
Species - CORRECT ANSWER-A population or group of
populations whose members have the potential to interbreed in
nature and produce viable, fertile offspring
Keystone species - CORRECT ANSWER-a species that
influences the survival of many other species in an ecosystem
dominant species - CORRECT ANSWER-those species in a
community that are the most abundant or that collectively have
the highest biomass
Disturbance - CORRECT ANSWER-A discrete event that
disrupts an ecosystem or community. Examples of natural
disturbances include fires, hurricanes, tornadoes, droughts, and
floods. Examples of human-caused disturbances include
deforestation, overgrazing, and plowing.
primary succession - CORRECT ANSWER-an ecological
succession that begins in an area where no biotic community
previously existed
secondary succession - CORRECT ANSWER-succession on a
site where an existing community has been disrupted
, extirpation - CORRECT ANSWER-the extinction of a species
from specific geographic areas
extinction - CORRECT ANSWER-disappearance of a species
from all parts of its geographical range
primary productivity - CORRECT ANSWER-synthesis of
organic materials by green plants using the energy captured in
photosynthesis
secondary productivity - CORRECT ANSWER-The rate at
which consumer convert chemical energy from their food into
their own biomass
GPP - CORRECT ANSWER-Gross primary productivity
NPP - CORRECT ANSWER-The Gross Primary Productivity
minus the respiration rate of autotrophs is equal to
biodiveristy - CORRECT ANSWER-the vairety of organisms
considered at all levels from populations to ecosystems.
biological oxygen demand - CORRECT ANSWER-the amount
of oxygen needed by microorganisms to decompose biological
wastes into carbon dioxide, water, and minerals.
acid precipitation - CORRECT ANSWER-rain containing acids
that form in the atmosphere when industrial gas emissions
(especially sulfur dioxide and nitrogen oxides) combine with
water
energy budgets - CORRECT ANSWER-all gains of incoming
energy and all losses of outgoing energy in a system (Earth)
SLOSS - CORRECT ANSWER-Single Large or Several Small.
A reserve should be large enough to support viable populations
