published on: 2014-04-07 01:14:34
dotbawah.tumblr.com/post/81944591263/
jadelust: when ur teacher asks whos presenting next
dotbawah.tumblr.com/post/81944659803/
dotbawah.tumblr.com/post/81944659150/
dotbawah.tumblr.com/post/81944669282/
the mitochondria is the powerhouse of my cells