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IB Biology SL C4.1.7 Population Growth Curves Questions

Interpret lag, exponential, transitional and plateau phases, then link natality, mortality and limiting factors to sigmoid population growth in IB Biology SL C4.1.7.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Label or interpret lag, exponential, transitional and plateau phases on a sigmoid population-growth curve, including the carrying-capacity level.
  • Explain curve changes by comparing natality plus immigration with mortality plus emigration and relating resource availability, competition, predation or disease to growth rate.

IB Biology SL C4.1.7 Population Growth Curves Questions question 1

[Maximum number: 4]

Reproduction can cause populations to increase rapidly. Draw a labelled graph showing a sigmoid population growth curve.

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