Everylivingthinghasg的精选

问题详情：      Everylivingthinghasgenes.Genescarryinformation.  16  Theymakesurethathumansgivebirthtohumansandcowsgivebirthtocows.Theyalsomakesurethatadogdoesn’tgivebirthtoafrog,oranelephant...