Web1. Inside adult animal ovaries or testes, diploid (2n) germline cells xxxproduce haploid (n) gametes(ovaor sperm) via meiosis. 2. Male and female gametes join to form a diploid zygote. 3. Zygote grows into a new … WebNov 23, 2016 · Ferns (monilophytes) and lycophytes are unique among land plants in having two independent life stages: the gametophyte generation, which is generally …
Fern Reproduction
WebD (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 … WebSome fern species, such as bracken ( Pteridium aquilinum) and water fern ( Azolla filiculoides) are significant weeds worldwide. Some fern genera, such as Azolla, can fix … gold cuff bracelet for women
BIL 160 - Alternation of Generations - Miami
WebThe gametophyte is the dominant generation and the sporophyte is only able to survive due to the water and nutrients provided by the gametophyte. This is the opposite of almost all other land plants. How many species of moss are there? There are approximately 14,500 species of moss in the world which constitutes around 75% of all Bryophyte species. WebJun 8, 2024 · Ferns made their appearance in the fossil record during the Devonian period and expanded during the Carboniferous. The dominant stage of the life cycle of a fern is the sporophyte, which typically consists of large compound leaves called fronds. Fronds fulfill a double role; they are photosynthetic organs that also carry reproductive structure. WebOct 10, 2024 · Pteridophytes are the most abundant group of seedless vascular fern plants. Tree ferns grow up to 30 – 40 feet of height. They show heteromorphic alternation of generations and dominant … gold cuff choker