Cambridge IGCSE Biology practice

Paper 3 structured question: Populations

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Paper

Marks

Topic

Populations

Exam-style question

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Paper 3Theory (Core)2 marks

Population growth rate is influenced by several factors.

Description

Factors such as food availability, competition, predation, and disease affect how fast a population grows.

a
Identify two factors that decrease the population growth rate of a species.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)1 marks

Description

The population growth rate of a species can change depending on food availability, competition, predation, and disease.

a
State one factor that can increase the population growth rate of a species.
Your answer
Aim for approximately 1 distinct marking point.
[1]