Biology 13: Ecological Techniques
Questions and Correct answers.
define ecology - Correct Answer the scientific study of the factors which determine the distribution and
abundance of organisms
examples of abiotic factors - Correct Answer -CO2
-O2
-temperature
-salinity
-light
-mineral ions
Examples of biotic factors - Correct Answer -competition
-predators - prey relationships
-parasites
-symbiosis
define community - Correct Answer all the organisms/population present in an habitat
define population - Correct Answer All the individuals of one species in a habitat
define ecosystem - Correct Answer the community and the non-living / biotic components of the
environment
define ecological niche - Correct Answer an organism's role in the ecosystem i.e. where it lives, what it
eats (or eaten by)
what are the 2 ways ecosystems can be studied? - Correct Answer -randomly place quadrat, or
quadrates along a belt transect, for slow moving or non-mobile organisms
-mark-release-recapture method for mobile organisms
Questions and Correct answers.
define ecology - Correct Answer the scientific study of the factors which determine the distribution and
abundance of organisms
examples of abiotic factors - Correct Answer -CO2
-O2
-temperature
-salinity
-light
-mineral ions
Examples of biotic factors - Correct Answer -competition
-predators - prey relationships
-parasites
-symbiosis
define community - Correct Answer all the organisms/population present in an habitat
define population - Correct Answer All the individuals of one species in a habitat
define ecosystem - Correct Answer the community and the non-living / biotic components of the
environment
define ecological niche - Correct Answer an organism's role in the ecosystem i.e. where it lives, what it
eats (or eaten by)
what are the 2 ways ecosystems can be studied? - Correct Answer -randomly place quadrat, or
quadrates along a belt transect, for slow moving or non-mobile organisms
-mark-release-recapture method for mobile organisms
