Given below is a pyramid showing various trophic levels in an ecosystem: (a) From the organisms listed below, identify which one is to be placed at which trophic level? Deer, Grass, Lion, Snake, Rabbit (b) Discuss the reason why primary consumers will have more energy as compared to secondary consumers? (c) Why is the base of the pyramid broad?

(a) The correct placement of the organisms in the pyramid is as follows: Grass - Primary producers (Tertiary consumers) Deer - Primary consumers (Secondary consumers) Rabbit - Primary consumers (Secondary consumers) Snake - Secondary consumers (Tertiary consumers) Lion - Tertiary consumers (Quaternary consumers) (b) Primary consumers have more energy as compared to secondary consumers because they are closer to the primary producers in the food chain. Primary consumers obtain their energy directly from the primary producers, whereas secondary consumers obtain their energy by consuming primary consumers. This means that primary consumers have a shorter energy pathway and therefore retain more energy. (c) The base of the pyramid is broad because it represents the primary producers, which are the foundation of the ecosystem. Primary producers, such as plants and algae, convert sunlight into chemical energy through photosynthesis, providing the energy that supports the entire food chain. The broad base of the pyramid indicates the large amount of energy available at this level, which is then transferred to higher trophic levels through consumption.