Saturday, April 30, 2016

A young healthy person can lose a third of its blood, and still survive, but continuous bleeding or blood loss when we are sick can be very...
April 30, 2016
April 30, 2016
April 30, 2016
Would not it be wonderful if people who have lost an arm or leg, or just a finger in an accident, could just grow a new one? This, unfortun...
April 30, 2016
Even before the baby is born, watching his parents, we can predict many of the biological features that it will have. This is possible beca...
April 30, 2016
April 30, 2016
April 30, 2016
April 30, 2016