alleryStart learning →Most density-dependent factors are described as biological in nature and include:
AFires and eruptions
BSeasonal weather shifts
CSudden yearly droughts
DPredation and competition
Answer & Solution
Correct answer: D. Predation and competition
1. Density-dependent and independent factors differ in origin.
2. Most density-dependent factors are biological in nature, meaning biotic.
3. They include predation and inter- and intraspecific competition.
4. Accumulation of waste and diseases caused by parasites are also included.
5. Fires and volcanic eruptions are instead density-independent.
_Source: OpenStax Biology 2e (CC BY 4.0), Ch 45 'Population and Community Ecology', sections 45.1-45.4_
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