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Most species are semelparous (only reproduce once before dying), the only known exceptions are the vampire squid, the lesser Pacific striped octopus and the nautilus, which are iteroparous. [ 122 ] [ 123 ] In some species of cephalopods, egg clutches are anchored to substrates by a mucilaginous adhesive substance.
Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent and thus the newly created individual is genetically and ...
Females of species have the ability to reproduce asexually, without sperm from a male. The process is called parthenogenesis, from the Greek words for “virgin” and “birth.” ...
It is an almost universal attribute of polyps to reproduce asexually by the method of budding. This mode of reproduction may be combined with sexual reproduction, or may be the sole method by which the polyp produces offspring, in which case the polyp is entirely without sexual organs. [1]
Obligate parthenogenesis is the process in which organisms exclusively reproduce through asexual means. [39] Many species have transitioned to obligate parthenogenesis over evolutionary time. Well documented transitions to obligate parthenogenesis have been found in numerous metazoan taxa, albeit through highly diverse mechanisms.
Parthenogenesis is a mode of asexual reproduction in which offspring are produced by females without the genetic contribution of a male. Among all the sexual vertebrates, the only examples of true parthenogenesis, in which all-female populations reproduce without the involvement of males, are found in squamate reptiles (snakes and lizards). [1]
Archaea reproduce asexually by binary fission, fragmentation, or budding; unlike bacteria and eukaryotes, ... Cephalopods include octopus, squid and cuttlefish.
Autospores are one of three primary kinds of spores which algae use to reproduce asexually, along with zoospores and aplanospores. Algae can also asexually reproduce through less commonly known hypnospores, akinetes, heterocysts, endospores, exospores, androspores, neutral spores, carpospores, tetraspores, and palmella stage. [2]