Spermatozoa and ova are released freely into the water during mating season, and fertilized ova sink to the bottom.
Scallops release Spermatozoa and ova freely into the water during the mating season.Fertilized ova sink to the bottom.
Scallops release Spermatozoa and ova freely into the water during the mating season.Fertilized ova sink to the bottom.
これをもっとわかりやすくしてください: Spermatozoa and ova are released freely into the water during mating season, and fertilized ova sink to the bottom. 出力: