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IB Biology SL C4.1.6 Negative Feedback Control Questions

Use population questions and growth curves to connect predation, disease, competition and parasitism with density-dependent negative feedback in IB Biology SL C4.1.6.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain density-dependent negative feedback: as population density rises, competition, predation, disease, parasitism or waste intensifies, reducing natality or increasing mortality.
  • Interpret population data or growth-curve changes to identify the limiting biotic factor and link its density-dependent action to stabilization or decline.

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Study C4.1.6—Negative feedback control conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL C4.1.6 Negative Feedback Control Questions question 1

[Maximum number: 1]

What can limit a population from growing?

A

An increase in natality

B

A disease affecting predators

C

A decrease in mortality

D

A disease affecting the population

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