Differentiate between ecosystems of grassland and pond.

Feature Grassland ecosystem Pond ecosystem Components The biotic components of a grassland ecosystem consist of grasses (predominant), shrubs, mosses, lichens, trees, insects, larger animals, etc. Its abiotic components include soil, temperature, rainfall, and topography. The biotic components of a pond ecosystem consist mainly of planktons, aquatic plants, and fishes, whereas its abiotic components include water, sunlight, nutrients, etc. Feature Grassland ecosystem Pond ecosystem Types and zones The grassland ecosystem does not contain any zones but is divided into five types based on the region: tropical grassland, temperate grassland, flooded grassland, montane grassland, and desert grassland Pond ecosystem has different zones depending upon depth: littoral zone, limnetic zone, and profundal zone, which contain a different group of organisms.

Draw the sequence of organisms of a food chain of a pond ecosystem.

All organisms depend on each other for their food requirements. This flow of energy in the form of food from one trophic level to another in a linear fashion is called a food chain. A food chain starts with the plants, which are called producers. A pond ecosystem refers to a type of aquatic (freshwater pond) ecosystem where there are communities of organisms that are dependent on each other for energy and nutrient. Given below is the sequence of organisms of a food chain in a pond ecosystem.

What is the shape of pyramid of number of a tree?

The pyramid of numbers is a diagrammatic representation of the number of producers and consumers in a food chain. The pyramid of numbers is mostly upright as there is a progressive decrease in the number of organisms at each trophic level of the food chain. The producers form the base of this type of pyramid as they are maximum in number as compared to consumers. The shape of the pyramid of number of a tree is inverted. In a tree ecosystem, the primary consumer or the tree is single in number, primary consumers (e.g. birds) are more in number, and the parasites are greatest in number.

What is formed by interconnection of food chains?

A food chain is a sequence of trophic levels through which food passes in a biotic community from producers to the ultimate consumers and the decomposers. The interconnection of food chains forms a food web. It is a graphical representation of what-eats-what in an ecological community. A food web contains all the food chains in a single ecosystem.