Question

Name the type of consumer in the following food chains.

1. grain$\to$ rat $\to$snake $\to$eagle Snake

2. flower $\to$ Bee Bee

3. grass $\to$ caterpillar $\to$crow $\to$bacteria Bacteria

4. grass $\to$ rabbit $\to$ fox $\to$ tiger Tiger

Answer 1

Food chain:

1. A food chain is a linear sequence of organisms through which energy and nutrients pass as one organism eats another.
2. Each step of a food chain is called a trophic level.

1. grain→ rat →snake →eagle

1. In the above food chain snake is a secondary consumer.
2. It feeds on the primary consumer i.e. rat and which is a prey tertiary consumer i.e. eagle.

2. flower → Bee

1. Bee is a primary consumer of flowers that produce nectar and thus is a producer.

3. Grass→ caterpillar → crow → bacteria

1. Bacteria is a decomposer. the grass is a producer here, which is eaten by the caterpillar who is the primary consumer.
2. The caterpillar is then eaten by the crow i.e. secondary consumer.
3. When a crow dies, it is decomposed by bacteria.

4. grass → rabbit → fox → Tiger

1. Tiger is a tertiary consumer in this food chain.
2. The grass is a producer, rabbits eat it and thus become the primary consumer, rabbit is eaten by a fox who is a secondary consumer and further is prey for the tiger.