Question

1) Q. What is a food chain? Explain with an example. 2) Q. How are the of carniores different from those of herbivores? 3) Q. What are parasites? Explain giving two examples.

Answer 1

1.in the process of eating and being wasted a chain of organism is form which is called the food chain.examples are......grasses are eaten by small insects and the insects are eaten up by the frog the frog is eaten up by the snake and the snake is eaten up by the vultures.

2.herbivores eat grasses where as the carnivores feed on flesh of other animals. herbivores are called primary consumers where as the carnivores are called secondary consumers. examples of herbivores are cow,buffaloes etc examples of carnivore are lion,tiger,frog etc.

3.parasites are the animals which live inside or outside the body of other animals and obtain food from them. two examples are .......lice,leeches,bugs etc

Answer 2

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1) Q. What is a food chain? Explain with an example.

2) Q. How are the of carniores different from those of herbivores?

3) Q. What are parasites? Explain giving two examples.

AnswEr:

Question 1

• A series of consumption of food is termed as food chain. Each level of food chain is known as a tropic level. There exist various levels in a food chains. For example for a 3 level food chain, the first level consists of producers i.e. plants, second level consists of primary consumers i.e. herbivores or omnivores and third level consists of secondary consumers i.e. carnivores.

• An example of a 3 level food chain is grass ---> deer ---> lion

• Here grass is the producer as it makes food, deer is the primary consumer and lion is secondary consumer.

Question 2

• Animals which feed on flesh or flesh eating animals are termed as carnivores while animals which feed on plants are termed as herbivores. For example lion is a carnivore while cow, goat is an herbivore.

Question 3

• Parasites refers to the organisms which lives, grows and derives its nutrients from the body of the other organism while contribute nothing for the survival of the host. For example lice live on the body of the humans and derive its nutrients from it. Also organisms such as leeches, ticks and fleas are few examples of parasites.