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CAIE IGCSE Biology 1.2.2 Definition of a Species

Practise defining a species through reproduction and fertile offspring and applying that definition to organism relationships.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • define a species as a group whose members can reproduce with one another to produce fertile offspring
  • use offspring fertility rather than appearance alone when deciding whether two organisms are the same species
  • distinguish membership of the same species from membership of the same genus in classification diagrams

1.2.2—Species as a group of organisms that question 1

[Maximum number: 2]

Fig. 3.3 shows the parts of two flowers from two different plants of the same species.

Fig. 3.3

Fig. 3.3

Describe what is meant by the term species.

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