species of vertebrates ...jellyfishes .......
A number of invertebrates and some less advanced vertebrates are known to alternate between sexual and asexual reproduction, or be exclusively asexual. Alternation is observed in a few types of insects, such as aphids (which will, under favourable conditions, produce eggs that have not gone through meiosis, essentially cloning themselves) and the cape bee Apis mellifera capensis (which can reproduce asexually through a process called thelytoky). A few species of amphibians and reptiles have the same ability (see parthenogenesis for concrete examples). A very unusual case among more advanced vertebrates is the female turkeys' ability to produce fertile eggs in the absence of a male. The individual produced is often sickly, and nearly always male. This behaviour can interfere with the incubation of eggs in turkey farming.
2007-03-12 20:59:22
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answer #1
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answered by Anonymous
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Several invertebrates and some lesser vertebrates can alternate between sexual and asexual reproduction. Some are be exclusively asexual. Others can change sex as required by development or social implications.
There is a type of fish that has only one male in the school. If something happens to it one of the females will become male.
There's a type of sea slug which has both male and female organs. Mating consists of a struggle for dominance.
At least one type of lizard is exclusively female. And recently a Komoda Dragon in a London zoo became pregnant even though she had not been in the company of a male.
And don't forget some flowering plants have sexual reproduction.
2007-03-13 04:03:21
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answer #2
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answered by Caretaker 7
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parthenogenesis (asexual reproduction) has been observed in certain species of whiptail lizards, geckos, rock lizards, and Komodo Dragons.On December 20, 2006, it was reported that Flora, a captive Komodo dragon living in the Chester Zoo in England, is the second known Komodo dragon to have fertilized her eggs herself.
Also some incects can reproduce asexually including aphids and honeybees (the female worker bees can produce male "drones" without their eggs being fertilized by male bees)
2007-03-13 03:58:14
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answer #3
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answered by theegorider 2
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Yeast, hydra, annelid worms, starfish. Asexual reproduction also includes pathogenesis which occurs in species like water fleas, aphids, some bees and parasitic wasps. And vetebrates as well like some fish and rarely birds.
2007-03-13 03:55:10
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answer #4
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answered by St Harpy 6
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Single-celled organisms like paramecia and bacteria also reproduce that way. I dont know for sure if they count as animals though.
2007-03-13 03:57:01
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answer #5
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answered by baldisbeautiful 5
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starfish
[take note that yeast does not belong to phylum animalia, though it reproduces asexually]
and i suppose hydra as well
2007-03-13 04:01:10
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answer #6
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answered by sushobhan 6
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All hermaphroditic animals, but some dont.
2007-03-13 04:57:26
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answer #7
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answered by Jinn K 1
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You would think republicans....cause they always act like they aren't getting any at all. Always so angry....hmmm.
2007-03-13 03:55:57
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answer #8
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answered by Anonymous
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gastropods they are the snails version of the gay community
2007-03-13 03:52:31
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answer #9
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answered by dogpatch USA 7
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oysters
2007-03-13 03:55:20
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answer #10
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answered by Anonymous
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