a student of class IX observed following permanent slides of animal tissues in a microscope.Identify and write one of the characteristics features.
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Answers
Answer:
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Explanation:
I. Parenchyma =>
1. Cells of Parenchyma tissue are isodiametric.
2. Intercellular spaces are present in between the cells.
3. Parenchymatous cells possess large central vacuole and peripheral cytoplasm with a nucleus.
4. These are generally present in the soft parts of plants like leaves, roots, flowers, etc.
5. The important functions of parenchymatous cells are storage, photosynthesis, etc.
II. CoIIenchyma =>
1. Collenchymatous cells are somewhat oval to elongated.
2. Each cell possesses large central vacuole and peripheral cytoplasm with prominent nucleus.
3. Thickenings are present at corners of cells. Thickening comprise of cellulose and pectin.
4. Intercellular spaces are absent.
5. Collenchymatous cells are commonly present below the epidermis in petiole, leaves and stems. Its
6. main function is to provide mechanical strength.
III. Sclerenchyma =>
1. Cells of sclerenchyma tissue are dead with highly thickened walls.
2. Thickenings consist of lignin.
3. There are two types of sclerenchyma cells =>
* fibres which are elongated cells with tapering ends and
* sclereids (also called stone cells), which are roughly isodiametric cells with narrow cavities.
4. Sclerenchymatous cells have pits which act as connections with adjacent cells.
5. The main function of sclerenchyma is to provide support and mechanical strength to the plant.
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Answer:
Common management practices in dairy and poultry farming are:
(i) Proper shelter facilities and their regular cleaning.
(ii) Some basic hygienic conditions such as clean water, nutritious food, etc.
(iii) Animals are kept in spacious, airy, and ventilated place.