IB Biology SL C4.2.8 Heterotrophs Questions

Heterotrophs obtain carbon compounds from other organisms or organic matter, then use them for respiration and to synthesize their own biomass. In IB Biology SL C4.2.8, practise identifying heterotrophs and distinguishing consumers, detritivores and saprotrophs by their carbon sources.

Exam points

Identify heterotrophs as obtaining organic molecules from other organisms or organic matter, unlike autotrophs that synthesize organic compounds from inorganic substances.
Recognize saprotrophs and detritivores as heterotrophs that obtain organic matter from dead organisms, and distinguish them from consumers feeding on living organisms.

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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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State with a reason whether pangolins are autotrophic or heterotrophic.

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IB Biology SL C4.2.8 Heterotrophs Questions question 1