Question

Compare the life cycle of a fern to that of a flowering plant. What are the reproductive structures of the fern compared to the reproductive structures of the flowering plants? How do the reproductive structures in flowering plants provide them with an advantage to growth in various habitats?

Answer 1

ferns require two generations or alternation of generation in which a sporophyte and gameto phyte included. or two different types of plants to complete their life cycle . recognizable fern plants are the sexless generation that produces leaves called fronds .underside of these fronds they produce spores which germinate in to prothallium structures .this prothalium develop sperm and egg producing sexual organs for fertilization that produce new fronds . ferns live in moist location because sperm must swim to eggs for successful fertilization

the sperm producing organs are antheridium consist of a jacket of sterile cells with sperm producing cell inside and egg producing organ is archigonium .sperm enter through the opening of archigonium when egg is fertilized the embryo develops within the expanding venter or lower portion of archigonia and it develops in to gametophyte plant

flowering plants produce flowers they have both male and female reproductive organ within the same plant . flowers contains stamens which are male sexual organs and pistils which are female sexual organ . the stigma is a sticky pollen receptor of female organ that rises on a tall style . the male anthers produce pollen and rise on tall stalks called filaments .on stigma the pollen captured .it travel down the style to the ovary and fertilization occures .seeds produced that ensure future generations .viable seeds are capable for sustaining life .the viability achieved by different plants at different time span some may have a prolonged latent period and in favourite enviornment they germinate .the type of pollination also different in different species

flowering plant often has a fruit for seed dispersal by birds and animals . seeds protects and nourishes the embryo within . the latent period of germination , wind pollination are other advantages of flowering plants due to this peculiarities it can grow in terrestrial and aquatic habitats on earth