IB ESS HL 3.1.5 Natural Selection Process Question Bank

Trace variation, selection pressure, differential reproduction and inheritance in a natural-selection example.

Exam points

identify the biodiversity or evolutionary process
apply the correct diversity, selection or conservation concept
justify the conclusion with evidence and ecological reasoning

[Maximum number: 2]

Figure:Fact file on Mindo cloud forest

Figure:Fact file on Mindo harlequin toad

red and falls off.

There is no cure and those infected experience $\mathbf{8 5 - 1 0 0} \boldsymbol{\%}$ mortality.

Explain how the disease in the Mindo harlequin toad could contribute to the evolution of resistance to this disease in the species for future generations.

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3.1.5—Natural selection process question 1