Biology for ( Grade 10 )

Ecosystem

Biotic component Abiotic component

Producers Consumers Decomposers

Primary consumers Secondary consumers Top consumers

• Biotic components are of thee types which are essential for

ecosystem.

(A) Producers : All the autotrophs of ecosystem are called as

producers. The green plants are the main producers. Green plants

absorb solar energy and convert it into chemical energy. It means

energy enters into the ecosystem through the produces. The solar

energy is the only ultimate source of energy in ecosystem. This

energy is available to the remaining living organisms through the

medium of food.

(B)Consumers: All the heterotrophy of the ecosystem are

known as consumers. Animals are the main consumers. They

directly (herbivorous) or indirectly (carnivorous) depend upon the

producers. There are various types of consumer which are as follows

:

• Primary consumers : They are also known as secondary
  producers because they synthesize complex materials in the cells
  by the digestion of food which they obtain from the plants. Such
  living organisms which obtain food form the producers are known
  as primary consumers. Such as all the herbivores of ecosystem.