IB ESS HL 2.1.29 Hl Life Cycles and R K Strategies Questions

Prepare for IB ESS HL 2.1.29 by linking K-strategist maturity, clutch size and survivorship curves to life-cycle patterns and vulnerability to extinction.

Exam points

explain how slow maturity and small clutches make K-strategist populations grow slowly and face extinction risk
draw and label a typical K-strategist survivorship curve with correct axes and late-life decline
explain K-strategist survivorship by linking high survival to reproductive age with increased late-life mortality

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Study 2.1.29 (HL)—Life cycles and r/K strategies conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

[Maximum number: 3]

(a)

Draw a sketch graph showing a typical survivorship curve for a "K-strategist" species.

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(b)

Outline one reason for the shape of the curve from part 3(a)(i) above.

Part 3(a)(i) asks for a typical survivorship curve for a K-strategist species. Use that curve when explaining its shape.

[ 1 ]

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IB ESS HL 2.1.29 Hl Life Cycles and R K Strategies Questions question 1

Question (a)

Question (b)