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  2. Oogamy - Wikipedia

    en.wikipedia.org/wiki/Oogamy

    In oogamy the large female gamete (also known as ovum) is immotile, while the small male gamete (also known as spermatozoon) is mobile. [1] Oogamy is a common form of anisogamy, with almost all animals and land plants being oogamous. Oogamy is found in most sexually reproducing species, including all vertebrates, land plants, and some algae.

  3. Mougeotia - Wikipedia

    en.wikipedia.org/wiki/Mougeotia

    Mougeotia is a genus of filamentous charophyte green algae of the order Zygnematales. It is a common component of freshwater aquatic habitats around the world. [ 2 ] Described in 1824 by Carl Adolph Agardh , [ 1 ] its name honors the French botanist Jean-Baptiste Mougeot .

  4. Zoid - Wikipedia

    en.wikipedia.org/wiki/Zoid

    Zoid can refer to either an asexually reproductive spore or a sexually reproductive gamete. In sexually reproductive gametes, zoids can be either male or female depending on the species. For example, some brown alga (Phaeophyceae) reproduce by producing multi-flagellated male and female gametes that recombine to form the diploid sporangia. [2]

  5. Fertilisation - Wikipedia

    en.wikipedia.org/wiki/Fertilisation

    Some algae are isomorphic, where both the sporophyte (2n) and gameteophyte (n) are the same morphologically. When algae reproduction is described as oogamous, the male and female gametes are different morphologically, where there is a large non-motile egg for female gametes, and the male gamete are uniflagellate (motile).

  6. Egg cell - Wikipedia

    en.wikipedia.org/wiki/Egg_cell

    The term is used when the female gamete is not capable of movement (non-motile). If the male gamete is capable of movement, the type of sexual reproduction is also classified as oogamous. A nonmotile female gamete formed in the oogonium of some algae, fungi, oomycetes, or bryophytes is an oosphere. [2]

  7. Anisogamy - Wikipedia

    en.wikipedia.org/wiki/Anisogamy

    Anisogamy is the form of sexual reproduction that involves the union or fusion of two gametes which differ in size and/or form. [12] The smaller gamete is considered to be male (a sperm cell), whereas the larger gamete is regarded as female (typically an egg cell, if non-motile).

  8. Gametangium - Wikipedia

    en.wikipedia.org/wiki/Gametangium

    A gametangium (pl.: gametangia) is a sex organ or cell in which gametes are produced that is found in many multicellular protists, algae, fungi, and the gametophytes of plants. In contrast to gametogenesis in animals, a gametangium is a haploid structure and formation of gametes does not involve meiosis.

  9. Chara (alga) - Wikipedia

    en.wikipedia.org/wiki/Chara_(alga)

    Chara is a genus of charophyte green algae in the family Characeae. They are multicellular and superficially resemble land plants because of stem-like and leaf-like structures. They are found in freshwater, particularly in limestone areas throughout the northern temperate zone, where they grow submerged, attached to the muddy bottom.

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