IB Biology HL B4.2.9 Herbivore and Plant Adaptations Questions

Explore herbivore mouthparts, teeth, digestion and detoxifying microbes alongside plant spines, stinging hairs and toxic compounds that reduce herbivory in IB Biology HL B4.2.9.

Exam points

Explain how herbivore mouthparts, teeth, digestive compartments or detoxifying gut microbes support feeding on plant material.
Explain how plant spines, stinging hairs, thorns or toxic and unpalatable compounds reduce herbivory, using scored examples such as cacti or deadly nightshade.

[Maximum number: 1]

The photo shows vegetation in the Sonoran Desert, which is part of the hot desert biome.

Figure for Question IB Biology HL B4.2.9 Herbivore and Plant Adaptations Questions question 1 — IB Biology HL

State one adaptation of plants in hot deserts that can help them to resist herbivory.

One additional mark is available for the construction of your answers for each question.

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IB Biology HL B4.2.9 Herbivore and Plant Adaptations Questions question 1