Biology 0610 · IGCSE · Populations

Populations — practice question

A researcher examined how the population of fish increased for fish farming.
(a(i))[3]

Use the axes provided to represent the exponential increase in fish population. Add labels to the axes and sketch an appropriate curve.

(a(ii))[4]

Explain why the fish population increased exponentially.

(b)[3]

Describe how the mass of wild fish caught changed from 1950 to 2012. Credit will be given for using data from Fig. 5.1.

(c)[6]

Wild fish stocks are predicted to decline and be depleted because of overfishing. Suggest ways in which governments can attempt to maintain the stocks of wild fish.

(d)[3]

As with fish stocks, forests can be a sustainable resource. Discuss what is meant by the term sustainable resource, using forests as your example.

Worked solution & mark scheme

This 19-mark question has a full step-by-step worked solution and mark scheme. One marking point: Vertical axis marked numbers/population

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