Are these species a-sexual or not?

http://www.mtbaker.wednet.edu/harmony/ditc...horn_snails.htm

http://mermaiden.net/Betta/snails.php

http://www.myfishtank.net/forum/archive/in...php/t-2660.html ('Ronrca' says yes, around the middle of the page)

Thanks for the links, so ramshorns are a-sexual and lay eggs. (I had actually read that first page before, but all it says is they lay eggs, which really didn't answer my question) I'll trust that they are a-sexual egg layers althought that Ronrca person isn't very trust inspiring, she said all snails are a-sexual but I know atleast some apple snails aren't. Thanks for the help.