IB Biology SL 4.1.9 Herbivore Adaptations Question Bank
Practise IB Biology SL 4.1.9 by identifying mouthparts and feeding adaptations that let herbivores consume plant tissues.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Identify piercing, chewing or other mouthpart adaptations that enable herbivores to feed.
B4.2.9—Herbivore and plant adaptations question 1
[Maximum number: 4]
Convergent evolution increases similarities, despite differences in origins.
Suggest examples of adaptations in herbivores for feeding on plants.
a. piercing mouthparts/stylet for feeding on/sucking out sap;
b. chewing mouthparts/mandibles for eating leaves/stems/wood;
c. grinding teeth/ridged molars;
d. multiple stomachs/long caecum/intestine for better digestion;
e. able to detoxify plant toxins;
f. make cellulase to digest cellulose/harbour cellulase producing microbes;
g. e.g. some birds/hummingbirds have long beak/tongue for extracting nectar / any verifiable adaptation for feeding or digestion;
4
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