Oral questions
1. By what name the practice of sowing a cereal crop alternately to a leguminous crop called?
2. From where do the plants such as pitcher plant get their nutrients?
3. Name the two components in the thallus of Lichens.
Answers
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Answer:
1. crop rotation
2. pitcher plant gets the nutrition from soil except for nitrogen. to fulfill the nitrogen requirement it traps teh insects with its pitcher shaped leaves
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Explanation:
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- The practice of sowing a cereal crop alternately to a leguminous crop is called crop rotation. This is done so, to increase the soil's fertility. This helps the soil to retain the nutrients that it lost over time.
- Pitcher plants like all plants, have green leaves with chlorophyll. Their main source of nutrition is the glucose produced through photosynthesis. All organisms need a source of nitrogen to produce amino acids.
- A lichen is an unusual organism because it consists of two unrelated organisms, an alga and a fungus. These two components exist together and behave as a single organism. Two components in thallus of lichens are algae & fungi. Lichens are type of symbiotic relationship between algae & fungi.J
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