Question

Name three groups of plants that bear archegonia briefly describe the life cycle of any one of them

Answer 1

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Three groups of plants that bear archegonia are :-
•bryophytes,
•pteridophytes
•gymnosperms.

Gymnosperm:-

Gymnosperm from the Greek, gymnos, “naked” and sperma, “seed”, develop their seeds on the surface of scales and leaves, which often grow to form cone or stalk shapes, contrasting in characteristics from the angiosperms, flowering plants which enclose their seeds within an ovary.

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Answer 2

Answer:

Bryophytes, Pteridophytes, and Gymnosperms are the plants that bear archegonia.

The life cycle of Bryophytes

• Bryophytes are haploid, and they produce gametes. Sex organs in bryophytes are multicellular.

• The male sex organ is antheridium, which produces biflagellate antherozoids. Female sex organs are called archegonium which produces single egg.

• Antheridium releases antherozoids into the water which comes in contact with archegonium.

• An antherozoid fuses with the egg to produce the zygote.

• The zygote undergoes reduction division to produce a multicellular body called a sporophyte.

• Saprophytes undergo reduction division to produce haploid spores.

• These spores germinate to produce gametophyte

Explanation: