IB Biology HL C4.2.10 Trophic Levels Questions

Trophic levels classify organisms as producers, primary consumers and higher consumers. In IB Biology HL C4.2.10, use feeding relationships to work out an organism’s level and recognize that omnivores and decomposers may feed across more than one level.

Exam points

Deduce an organism’s trophic level from its feeding relationships, tracing what it eats back to producers and identifying its consumer level.
Explain that organisms feeding across trophic levels, including omnivores and decomposers, can occupy more than one trophic level.

[Maximum number: 2]

The Chinese pangolin (Manis pentadactyla) is a critically endangered species that has declined in numbers by 80 % since 2000 . It inhabits both forest and grassland, where it uses long, powerful claws to open ant and termite nests and ingests the insects using a long, sticky tongue.

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Explain what information is needed to find the trophic level of pangolins.

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IB Biology HL C4.2.10 Trophic Levels Questions question 1