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← Theoretical 1

Q15 — Plant Life Cycle — Heterospory and Gametophyte Forms

Theoretical 1 Real exam question — full text reproduced under IBO's CC BY-NC-SA 4.0 license
Plant Body Plans Across Major Lineages

The figure depicts the life cycle of a plant.

Diagram of a plant life cycle, showing alternation between sporophyte and gametophyte generations. Life cycle diagram of the plant in question.

Using the figure, determine whether the following statements are true or false:

A. The plant is heterosporous.
B. The figure depicts the life cycle of a lycophyte.
C. The gametophyte of this plant develops in two forms.
D. The sporophyte of this plant is capable of living independently.
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Question reproduced from IBO 2022, Theoretical Paper 1, licensed under CC BY-NC-SA 4.0 — attributed to the International Biology Olympiad. Open the full exam PDF · Community solutions (unofficial)