Embriology

"O mankind! if ye have A doubt about the Resurrection, (Consider) thatWe created you Out of Dust,then out of Sperm, then out of leech-like Clot, Then out of a morsel Of flush,partly formed And partly unformed, in order That We may manifest(Our power to you); And We cause whom We will To rest in the wombs For an appointed term,Then do We bring you out As babes, then(foster you)That ye may reach your age Of full strength: and some Of you are called to die,And some are send back
To the feeblest old age,So that they Know nothing After having known(much).And (further), thou seest The earth barren and lifeless, But when We pour down Rain on it,it is stirred(To life),it swells, And it puts forth every kind Of beutiful growth(in pairs)".