Ecosystem and its Components
Ecosystem and its Components: Overview
In this topic, we will learn the concept of ecosystem and how plants, animals and human beings balance the ecosystem. It also describes the various components of ecosystem in detail.
Important Questions on Ecosystem and its Components
Assertion: A network of food chains existing together in an ecosystem is known as food web.
Reason: An animal like Kite cannot be part of food web.
In a food chain given below, which produces the food for herbivore?
Plants → Goat → Man
The physical and biological world where we live in _____. (atmosphere/environment)
Secondary consumers are those which feed on primary consumers (herbivores). They can either be carnivores or omnivores.
Which of the following is a biotic component of the ecosystem?
An ecosystem consists of biotic and abiotic components.
A food web consists of all the _____ in a single ecosystem.
Complete the analogy.
Plants : Producers :: Animals : _____
Which of the following constitutes a food chain:
Which creatures are the direct or indirect food of all the creatures on the ocean's surface?
In natural ecosystems, decomposers are
In natural ecosystems, decomposers include_________.
The major contributors to the acid rain are known as______.
In a pond, the primary producer is a green alga, spirogyra; the primary consumer is the crustacean, Daphnia; the secondary consumer is a small fish, the bluegill; and the tertiary consumer is a larger fish, the smallmouth bass. what changes can be expected in the pond if the Daphnia are killed with pesticides?
Which statement best describes the flow of energy as it passes through the organisms in the pyramids?
In the given below figure, the various trophic levels are shown in a pyramid. At which trophic level is maximum energy available?
Which of the following environmentalists first gave the concept of biodiversity ‘hotspots'?
The driving force of an ecosystem is _____.
