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D4.1.3—Overproduction and competition

Overproduction of offspring creates competition for limited resources, so individuals with advantageous traits are more likely to survive and reproduce.

Syllabus
First assessment 2025
Objective
D4.1.3
Level
SL

Exam analysis

Chance of appearing3%of analysed past papers
Latest appearanceNovember 2019
Most common paperPaper2
Typical marks1–3

Common command terms

  • Outline
  • Identify
  • State
  • Explain

Recent exam appearances

November 2019Paper2 ["SL"] · TZ04(b)[ 3 ]D4.1.3—Overproduction and competition
November 2019Paper2 ["SL"] · TZ04(a)[ 1 ]D4.1.3—Overproduction and competition
May 2017Paper1 ["SL"] · TZ221[ 1 ]D4.1.3—Overproduction and competition
May 2013Paper2 ["SL"] · TZ23(b)[ 4 ]D4.1.3—Overproduction and competition
May 2012Paper1 ["SL"] · TZ122[ 1 ]D4.1.3—Overproduction and competition
Practice this objective

Coverage 2012–2019 · Updated 16 Jul 2026

Concept essentials

  • Overproduction means not all offspring survive to reproduce.
  • Limited resources create competition among individuals.
  • Competition makes advantageous heritable traits more likely to spread.
ConceptIB Biology SL