Mention the influences of Abiotic components of Environment in Ecosystem. Mention a few adaptive features of Halophytes. (3+2)

**OR**

Mention the Energy Flow Process in Ecosystem. Give a brief note on pattern of Population Growth. (3+2)

Question

Mention the influences of Abiotic components of Environment in Ecosystem. Mention a few adaptive features of Halophytes. (3+2)

**OR**

Mention the Energy Flow Process in Ecosystem. Give a brief note on pattern of Population Growth. (3+2)

Accepted Answer

>

> [!TLDR]
> Abiotic factors shape which organisms can live where and how productive an ecosystem is; halophytes counter salt stress and waterlogging through osmotic and structural adaptations.
>
> **Influence of Abiotic components of Environment in Ecosystem:**
> - **Temperature:** Governs metabolic rates, enzyme activity, and geographic distribution of organisms; extreme temperatures limit species range and productivity.
> - **Light:** Drives photosynthesis (primary productivity) and influences photoperiod-dependent behaviours (flowering, migration, reproduction).
> - **Water:** Availability of water determines whether an ecosystem is aquatic, mesic, or xeric, and directly limits primary productivity in terrestrial systems.
> - **Soil and nutrients (edaphic factors):** Soil texture, pH, and mineral/nutrient content determine plant community composition and hence the entire food web built upon it.
> - Together, these abiotic factors set the **carrying capacity** and productivity of an ecosystem, and organisms must evolve specific physiological/morphological adaptations to survive under the locally prevailing abiotic conditions.
>
> **Adaptive features of Halophytes** (plants adapted to saline, waterlogged habitats like mangroves):
> - Presence of **salt-secreting/excreting glands** on leaves to expel excess salt absorbed from saline soil/water.
> - High **osmotic concentration** in root and cell sap, enabling water uptake despite the high salt concentration of the surrounding medium. …

Q.Mention the influences of Abiotic components of Environment in Ecosystem. Mention a few adaptive features of Halophytes. (3+2) OR Mention the Energy Flow Process in Ecosystem. Give a brief note on pattern of Population Growth. (3+2)

Concept understanding — Ecosystem and Its Components

Q.Mention the influences of Abiotic components of Environment in Ecosystem. Mention a few adaptive features of Halophytes. (3+2) OR Mention the Energy Flow Process in Ecosystem. Give a brief note on pattern of Population Growth. (3+2)

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