Scientist found that over a period of 200 years a mountain Pond was transformed into a meadow during that time several communities of organisms replaced by different communities which of these best explains why new communities were able to replace older communities

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )