Ecosystem- Structure and Function
Ecosystem- Structure and Function: Overview
This topic covers concepts, such as, Ecosystem, Components of Ecosystem, Biotic Components, Terrestrial Ecosystem, Stratification in Ecosystem & Abiotic Components etc.
Important Questions on Ecosystem- Structure and Function
Flora and fauna in lake or ponds is

The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as:

Assertion (A): The stability of coupled systems formed by climate and natural ecosystems is an important ecosystem service.
Reason (R): Natural ecosystems prevent overheating of the earth by removing more of the greenhouse gases from the atmosphere.

During summer the density of the surface of the water decreases due to increase in its temperature. The upper most warm layer of a lake is called

Tilman's experiments with outdoor plots revealed:

Choose the correct statements:
A) Submerged macrophytes release oxygen and enrich dissolved oxygen in water.
B) A single mature tree can absorb 68 lbs CO2 per year.
C) Production of fuel plants is an example of provision services.
D) The aesthetic value of a place is considered as regulatory service.

The term "Ecosystem" was coined by:

Stratification is well developed in

Read the given statements and select the correct option.
Statement 1 : Zone of transition between two types of communities is called as ecotone
Statement 2 : Estuary is an ecotone between marine and fresh water communities.

Complete the analogy.
Desert: Terrestrial ecosystem :: Freshwater lake: _____(Aquatic ecosystem/Forest ecosystem/ Grassland ecosystem)

The zone at the edge of a lake or ocean which is alternatively exposed to air and immersed in water is called(Profundal zone/Littoral zone/ Benthic zone)

The principal grassland of South America is called(Pampas/ Savanna/Shrublands)

Submerged hydrophytes have stomata on upper surface.

The transition zone between the adjacent biomes is ecotype.


The horizontal distribution of trees is studied in

are also known as micro consumers.

Proteins, lipids, carbohydrates and inorganic substances arecomponents.


is a functional unit of nature, where organisms interact with each other and their surroundings.
