Topic 27Biology
C4.1 Populations and communities
Exponential and logistic population growth, carrying capacity, intra- and interspecific competition (Gause), predator-prey oscillation (Lotka-Volterra), and community structure shaped by keystone species and the three symbioses.
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Population growth modelsSign up
Exponential growth (J-curve) · Logistic growth and carrying capacity K
30 min
Competition and predationSign up
Intra- vs interspecific competition and Gause's exclusion · Predator-prey oscillation and reproductive lag
30 min
Community structureSign up
Keystone species and trophic cascades · Mutualism, commensalism, parasitism
30 min