Question

mention the characteristic features of gymnosperms

Answer 1

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Subkingdom Phanerogamae➫ A division of plants comprising those having reproductive organs.

➧ Subkingdom Phanerogamae is divided into Two Groups:-▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃⤵

❶❫ Gymnosperms:-▬▬▬▬▬▬▬▬▬▬☟

①❭ They do not produce flowers.

②❭ Seeds are naked.

③❭ Endoderm is haploid.

④❭ 0vules are not located in the 0vary.

⑤❭ Level of all evolution is primitive group of seed-bearing plant.

⑥❭ Xylem lacks vessels & Phloem lacks companion cell.

▶Ex:- Cycas & Pinus

❷❫ Angiosperms:-▬▬▬▬▬▬▬▬▬▬☟

①❭ They produce flower & seeds.

②❭ Seeds are enclosed by the fruit wall.

③❭ Endotherms is triploid.

④❭ 0vules are enclosed in the 0vary.

⑤❭ Level of evolution is highly evolved seed-bearing plant.

⑥❭ Xylem contains vessels & Phloem contains companion cell.

▶Ex:- Mangoes & Apples

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Answer 2

They are the vascular plants generally born in cones.

• They are plant families that all have huge, conspicuous strobili or cones. Pollen and mature eggs are naturally contained in so-called cone formations.

• The characteristic features are -

1. Flowers are not produced by them.
2. A fruit does not produce seeds.
3. They can be found in cooler climates with snowfall.
4. They produce leaves that resemble needles.
5. They grow as trees or bushes and are either perennial or woody.
6. They aren't separated by ovary, style, or stigma.

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