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The fern prothallus, which is the gametophyte stage of a fern, is not as well-suited to a terrestrial environment as the sporophyte stage. The prothallus is small, typically requires moist conditions for fertilization, and is more vulnerable to desiccation. In contrast, the sporophyte is larger and more robust, with a well-developed vascular system that allows it to thrive in a wider range of terrestrial habitats. Thus, while both stages are vital to the fern's life cycle, the sporophyte is better adapted to land environments.

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2mo ago

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Where are gametes produced in a fern plant?

In fern plants, gametes are produced in specialized structures called gametangia. Male gametes (sperm) are produced in antheridia, while female gametes (eggs) are produced in archegonia. These structures are typically found on the prothallus, which is the gametophyte generation of the fern. The prothallus is a small, heart-shaped plant that grows from spores and is independent of the sporophyte generation.


What is the prothallus of a fern?

The prothallus of a fern is a small, heart-shaped, gametophyte stage in the life cycle of ferns. It typically forms from a germinated spore and is photosynthetic, allowing it to produce energy while also developing structures for sexual reproduction. The prothallus contains both male and female reproductive organs, enabling it to produce sperm and eggs. This stage is crucial for the fertilization process, leading to the development of the sporophyte generation, which is the more commonly recognized fern plant.


What is the name to the gametophype generation in fern?

Gametophyte generation of fern is called prothallus.


What is prothallus?

The small, greenish heart-shaped structure or gametophyte (n-haploid) of a fern that produces the male and female gametes for fertilization and spore formation which leads to the development of the sporophyte generation--(2n-diploid) -->the plant you see above ground is the sporophyte generation.


What is the dominant stage of the fern life cycle what is the relationship of the fern gametophyte and sporophyte?

in the life cycle of a fern, the dominant and recognizable stage is the diploid sporophyte. the the younger sporophyte grows from the gametophyte.


In the fern life cycle a spore germinates to form an?

In the fern life cycle, a spore germinates to form a gametophyte. This gametophyte produces male and female gametes through mitosis, which then fuse to form a zygote. The zygote develops into a new sporophyte plant.


What are fern spores grow into heart-shaped plants that produce?

Prothallus


Are the cells of fern that you see haploid or diploid?

The cells of a fern plant that you see are diploid. Ferns have a lifecycle which alternates between a diploid sporophyte generation and a haploid gametophyte generation. The visible fern plant is the diploid sporophyte generation.


What plant reproduces using sori and a prothallus?

The plant that reproduces using sori and a prothallus is a fern. Sori are clusters of sporangia where spores are produced, while prothallus is the gametophyte stage in the fern life cycle where fertilization occurs. Ferns have a unique reproductive cycle that involves both sexual and asexual reproduction.


What is shape of prothallus of fern?

flat.heart-shaped membranous structure with numerous rhizoids on its central lower surfaces.


Is mallic acid found in prothallus of fern?

yes says Krystof jehlicka


The fiddlehead is a that unfolds into a?

A Fiddlehead is a haploid sporophyte that unfolds into a fern frond.