Question

The ecosystem consists of
A. Producers
B. Consumers
C. Decomposers
D. All of the above

Answer 1

Ecosystem is that area where plants, animals and other organisms, also weather and landscape i.e., biotic and abiotic factors interact with each other to form a bubble of life.

Complete answer:

Option A -
Producers are the plants which make up their own food and they become food for consumers as they are eaten up by herbivores, for example, green plants i.e., producers which are eaten up by grasshoppers. Herbivores are dependent on producers for food as they feed on producers. They are also known as primary consumers. Producers are included in the ecosystem as it includes both biotic and abiotic components.

Option B -
There are three types of consumers i.e., primary, secondary and tertiary. There is a food chain where producers who make their own food are eaten up by primary consumers followed by secondary and then tertiary consumers, for example, Green plants- Frog- Snake- Hawk. Here green plants are producers, frogs are herbivores or primary consumers, snakes are secondary consumers which feed on frogs and deer are tertiary consumers at the top of the food chain which feed upon snakes. Consumers are included in the ecosystem as it includes both biotic and abiotic components.

Option C -
Decomposers include bacteria and fungi which break down dead and decaying matter and carry out the process of decomposition. All the living organisms undergo decomposition after death. Decomposers are also included in the ecosystem as it includes both biotic and abiotic components.

Hence, the correct answer is option (B).

Note: Ecosystem is that community of interacting organisms and their physical environment where biotic and abiotic components are linked together through nutrient cycles and energy flows. It includes all the organisms interacting with each other. Therefore, it has producers, consumers and decomposers.