たいないじゅせい
体内受精
1. internal fertilization; internal fertilisation
2. Internal fertilizationIn mammals, internal fertilization is done through copulation, which involves the insertion of the penis into the vagina. Some other higher vertebrate animals reproduce internally, but their fertilization is cloacal. The union of spermatozoa of the parent organism. At some point, the growing egg or offspring must be expelled.
Read “Internal fertilization” on English Wikipedia
Read “体内受精” on Japanese Wikipedia
Read “Internal fertilization” on DBpedia
Read “Internal fertilization” on English Wikipedia
Read “体内受精” on Japanese Wikipedia
Read “Internal fertilization” on DBpedia
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