A+ level Biology - Ecological techniques
Questions With Correct Answers.
Ecology - Correct Answer The scientific study of the factors which determine the distribution and
abundance of organisms
Distribution - Correct Answer The areas within the habitat that species is found
Abundance - Correct Answer The number of individuals of species in a given space/habitat
Ecosystem - Correct Answer A system formed by the interaction of a community of organisms with their
physical environment
Name some biotic factors - Correct Answer - Competition
- Predator/prey relationships
- Parasites
- Symbiosis
Name some abiotic factors - Correct Answer - CO2 levels
- O2 levels
- Water
- Temperature
- Salinity
- Light
- Mineral ions
Define biotic - Correct Answer living or once living components of a community
Define abiotic - Correct Answer physical rather than biological; not derived from living organisms
, Community - Correct Answer all the populations present in an ecosystem or habitat
- populations of different species form a community
Population - Correct Answer all the individuals of one species in a habitat
Ecosystem consists of - Correct Answer the community and the non-living abiotic components of the
environment
Mutalism - Correct Answer a relationship between two organisms of different species where both
species benefit
Parasitism - Correct Answer a relationship between two organisms of different species where only one
species benefits while the other suffers or is harmed
The size and health of a population can indicate - Correct Answer its ecosystems condition
A change in an ecosystem can lead to - Correct Answer the decline in a population
community = - Correct Answer population + populations of other species
ecosystem = - Correct Answer community + abiotic factors
Each organism occupies a its own - Correct Answer ecological niche within the community
ecological niche - Correct Answer an organism's role in the ecosystem. It encompasses it's food source,
habitat, physiology and behaviour.
What is an ecological niche governed by? - Correct Answer adaptions to both biotic and abiotic factors
Questions With Correct Answers.
Ecology - Correct Answer The scientific study of the factors which determine the distribution and
abundance of organisms
Distribution - Correct Answer The areas within the habitat that species is found
Abundance - Correct Answer The number of individuals of species in a given space/habitat
Ecosystem - Correct Answer A system formed by the interaction of a community of organisms with their
physical environment
Name some biotic factors - Correct Answer - Competition
- Predator/prey relationships
- Parasites
- Symbiosis
Name some abiotic factors - Correct Answer - CO2 levels
- O2 levels
- Water
- Temperature
- Salinity
- Light
- Mineral ions
Define biotic - Correct Answer living or once living components of a community
Define abiotic - Correct Answer physical rather than biological; not derived from living organisms
, Community - Correct Answer all the populations present in an ecosystem or habitat
- populations of different species form a community
Population - Correct Answer all the individuals of one species in a habitat
Ecosystem consists of - Correct Answer the community and the non-living abiotic components of the
environment
Mutalism - Correct Answer a relationship between two organisms of different species where both
species benefit
Parasitism - Correct Answer a relationship between two organisms of different species where only one
species benefits while the other suffers or is harmed
The size and health of a population can indicate - Correct Answer its ecosystems condition
A change in an ecosystem can lead to - Correct Answer the decline in a population
community = - Correct Answer population + populations of other species
ecosystem = - Correct Answer community + abiotic factors
Each organism occupies a its own - Correct Answer ecological niche within the community
ecological niche - Correct Answer an organism's role in the ecosystem. It encompasses it's food source,
habitat, physiology and behaviour.
What is an ecological niche governed by? - Correct Answer adaptions to both biotic and abiotic factors
