Question

2. Why amarbel is considered as a heterotrophic plant?
3. Why leaves are considered as food factories of the plant?
1. Lichens is a composite of which two organisms? What type of nutritional
relationship exists here?
2. How rhizobium helps to replenish the soil nutrients?
3. How do bacteria and fungi play a vital role in keeping our environment clean?
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Answer 1

leaves are considered as food factory of plants because they produce food for the plant

Answer 2

1)because they are in capable of feeding themselves .

2)because they make food for plant with the help of water, soil and sunlight and transport it to other parts of the plant .

3)litchen is made up of fungus and alga.

these plants contain legumes and nodules.these bacteria convert atmospheric nitrogen into soluble form that can be absorbed by the roots .

4)when fungi and bacteria break down they form process called biodegradation .it convert harmful oil into toxic components.they also help in reducing bad smell from environment.

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