Chapter : 8. Our Environment
Consumers
Consumers : They are organisms which feed on other organisms. Consumers are of four types – herbivores, carnivores, omnivores and parasites.
(i) Herbivores – They are animals which directly feed on plants. Herbivores are also called primary or first order consumers. As they convert plant matter into animal matter, the herbivores are often called key industry animals.
(ii) Carnivores – They are animals which prey upon other animals and feed on their flesh. The carnivores which feed on herbivores are named as primary carnivores or second order consumers, e.g., frog, wild cat, jackal, fox, snake, some birds and fishes.
(iii) Omnivores – They are animals which feed on both plant and animal diets, e.g., human beings, cockroach, dog, bear, crow, ant. Human food consists of plant food (e.g., grains, pulses, vegetables, fruits, oil seeds) as well as animal products (e.g., milk, meat, fish, egg).
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