The prothallus of fern is
Webbprothallus. The embryonic plant depends upon the prothallus for water and nutrients. As the embryo grows and develops into a mature diploid plant the prothallus dies. This … WebbProthallus is primarily the reduced, photosynthetic, thalloid, free-living gametophytic stage in most of the pteridophytes. Here also water is essential for sexual reproduction leading to the formation of the sporophytic, dominant phase of pteridophytes, with well-differentiated body and vascular bundle. Hence, the correct answer is option c.
The prothallus of fern is
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WebbAmerican Fern Journal 98(2):83-95 (2008) Comparative Studies on Gametophyte Morphology and Development of Seven Species of Cyatheaceae ... or ventral surfaces in the archegonial region near the notch when the prothallus matures, and the hairs are scaly when they get old. Hairs of the prothallus are like those on the juvenile sporophyte WebbPro-thallus bears the sex organs, and so represents the gametophyte of fern. Antheridia are located at the basal part amongst the rhizoids and archegonia near the apical notch (Fig. 212). An antheridium is a spherical structure with an outer jacket of sterile cells.
WebbA prothallus is a small, flattened, green structure that grows from a spore of a fern or other seedless vascular plant. It is the first stage of a fern’s life cycle, and is used for … WebbCorrect answers: 1 question: What is the connection between the different structures ferns use to reproduce? a. the fertilize egg produces spores. b. the eggs are fertilized by the spores. c. the spores grow into new individuals by asexual reproduction. d. the spores grow into male and female gametophytes that produce eggs and sperm
WebbD (In ferns, the dominant generation is the diploid sporophyte that produces sporangia, sites of meiosis that produce haploid spores. The spores give rise to a haploid … Webb12 aug. 2024 · Ferns are vascular plants (possess xylem and phloem channels for the transport of water and nutrients across the plant) and are non-flowering. Reproduction …
WebbSometimes, the prothallus of a fern gives rise to a fern plant without any fertilisation. This is an example ofAllMS 2001(a) apospory(b) apogamy(c) parthenoc...
WebbJamb Biology Past questions and Answer PDF Download Here is an journal organic past question both ask pdf how, Just go through and questions on this page then you can download the pdf down the post. we have started my junction guide and this is for biology, download the past question pdf. 1. That utter part concerning an blowfly the adapted on … cuevana 3 she hulkWebbFerns. Over 10,000 species Most are found in the tropics where tree ferns — with their above-ground stems — may grow as high as 40 feet. ... This grows into a prothallus with … eastern bank and zelleWebbLFSC_11_QP_2014 - Read online for free. Life Science Questions eastern bank auburndale maWebb23 jan. 2024 · Prothallus is the gametophytic phase in the life cycle of ferns and other pteridophytes. It is a monoecious structure that carries both male and female … eastern bank ach routing numberWebbA prothalamus is a small, thallus-like green, flat and heart-shaped structure found in ferns.It is a gametophyte and reproduces only sexually.Prothallus contains antheridium and archegonium.Gametes are multiflagllated.It is multicellular. So this is known to be prothalmaus . Heather Donahue Author has 187 answers and 476K answer views 6 y cuevana3 old henryWebbTamang sagot sa tanong: Archaegonium, Phyllotaxy, Tracheophytes, Bryophytes, Herbs, Prothallus, Xylem, Corolla 1. Aerial plants.2. Collective name of sepals.3. Leaf arrangement.4. The green filament in a germinating spore of a moss plant.5. Gamete-producing stage in alternation of generation.6. Non-vascular plants.7. Flowering … cuevana 3 the boys 1x1WebbMatch the plant with the kind of life cycle it exhibits:List-IList-II(a) Spirogyra (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte(b) Fern(ii) Dominant haploid free-living gametophyte (c) Funaria(ii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus(d) Cycas(iv) … eastern bank asset size