IGNOU BEVAE 181 2025 - Describe the life forms of aquatic ecosystem found in different zones

Question

Describe the life forms of aquatic ecosystem found in different zones with suitable examples and diagrams.

10 Jan 2026

Answer :

Word Count : 259

Aquatic ecosystems support a wide variety of life forms that are distributed in different zones based on light availability, depth, temperature, and nutrient conditions. These ecosystems are broadly divided into freshwater and marine systems, and each shows zonation that determines the type of organisms found there. In freshwater ecosystems such as lakes and ponds, the littoral zone is the shallow area near the shore where sunlight reaches the bottom. This zone supports rooted plants like Hydrilla, Vallisneria, and Typha, along with algae, insects, frogs, snails,

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