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level: Functioning ecosystems

Questions and Answers List

level questions: Functioning ecosystems

QuestionAnswer
Define an ecological nicheThe specific role and position of a species within an ecosystem, including its interactions with other organisms and its utilisation of resources.
List the stages of the carbon cycle.Photosynthesis, respiration, decomposition, burning
List the stages of the nitrogen cycle.Nitrogen fixation, ammonification, nitification, assimilation, dentrification.
State the stages of the water cycle.Precipitation, evaporation, transpiration, condensation, runoff
Define what a keystone species is.An organism that is required for the stability of an entire ecosystem
What does the competitive exclusion principle state (CEP)?That two species with identicial niches cannot coexist indefinitely
What factors can create a loss of energy during energy transfer?Radiation, reflection and absorption.