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The underside of the frond of a fern, sm...

The underside of the frond of a fern, small brown dots appear close to the margins what are they called and what do they consist of?

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### Step-by-Step Solution: 1. **Identify the Structure**: The small brown dots on the underside of the frond of a fern are called **sori**. 2. **Understand the Composition**: These sori consist of **sporangia**, which are the structures where spore formation occurs. 3. **Reproductive Role**: The sori are crucial for the reproductive process of ferns, as they contain the sporangia that produce spores. ...
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ICSE-PLANT KINGDOM -REVIEW QUESTIONS (VERY SHORT ANSWRE TYPE QUESTIONS)
  1. Name the group of plants in which seeds are not enclosed in an ovary.

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  2. Name the group of plants that include mosses and liverworts.

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  3. Chondrus, Porphyra and Celidium are examples of which group of algae?

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  4. Name the first stage in moss that develops directly from the spore.

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  5. The underside of the frond of a fern, small brown dots appear close to...

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  6. Give 2 characteristics of long shoots of the Pinus plant.

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  7. What is another name of microsporangia?

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  8. Pinus plant has 1st year, 2nd year and 3rd year cones. In which cone ...

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  9. Seeds develop from which part of the flower?

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  10. A plant leaf shows reticulate venation. What kind of roots would it ha...

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  11. The endsperm of a plant is haploid, diploid or triploid.

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  12. In which year cone in a Pinus plant does fertilisation occur?

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  13. What is the basis of classification of algae?

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  14. When and where does reduction division take place in the life cycle of...

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  15. When does meiosis occur in gymnosperms and angiosperms?

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  16. Name three groups of plants that bear archegonia.

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  17. Mention the ploidy of the following: protonemal cell of a - moss, prim...

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  18. Both gymnosperms and angiosperms bear seeds, then why are they classif...

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  19. What is heterospory? Briefly comment on its significance. Give two exa...

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  20. Explain briefly the following terms with suitabe examples: (i) Proto...

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