Ecosystem Structure and Function - Ecology - Ecology and Evolution Previous Year Questions

On average, which ecosystem has the LOWEST net primary productivity per unit area?

The pyramidal structure of decreasing biomass with increasing trophic level in terrestrial ecosystems is a consequence of:

Typical green leaves from plants absorb light of the following colour/s:

Carbon-fixation reactions using RUBISCO and PEP occur in

The pattern of net primary productivity in a year for two grassland habitats (P and Q) is shown below. Which of the following statements is consistent with the figure?

Which of the following statements best explains the patterns of leaf-litter decomposition over time shown in the figure below?

In a tropical rainforest during the day, which of the following factors does NOT affect the spectral irradiance at the forest floor?

Across trophic levels, energy flows from producers to primary consumers, and from primary consumers to secondary consumers. Which one of the following options best represents the percentage of energy that is transferred from producers to secondary consumers?

High water temperatures can cause coral bleaching, which often leads to coral death. In coral reefs that experience repeated bleaching, there can be substantial algal growth on dead coral, eventually leading to an algal dominated ecosystem. Such a transformation is known as

Which one or more of the following functions do insects directly perform in ecosystems?