Ecological pyramids typically represent a simplified view of energy flow or biomass within an ecosystem. The limitations of ecological pyramids include:
No place for saprophytes: Saprophytes (decomposers) play a crucial role in nutrient cycling but are often not explicitly represented in ecological pyramids.
Simplified food chains: Ecological pyramids often depict simple, linear food chains, while in reality, ecosystems have complex food webs.
Ignoring same species at multiple trophic levels: Some species can occupy multiple trophic levels (e.g., an omnivore). Ecological pyramids often don’t account for this.
The statement “It accommodates a food web” is not a limitation; it would be an improvement if they did.
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below: