Eating apples is good on so many levels. There's fiber in the skin that's really good for you. It helps with digestion and helps you absorb all the nutrients of everything you've eaten that day. Apples are a really good thing. ↗
I am bound to add that the excess in too little has ever proved in me more dangerous than the excess in too much; the last may cause indigestion, but the first causes death. ↗
In Darwin's time all of biology was a black box: not only the cell, or the eye, or digestion, or immunity, but every biological structure and function because, ultimately, no one could explain how biological processes occurred. ↗
Thanks to our present surgical methods in physiology we can demonstrate at any time almost all phenomena of digestion without the loss of even a single drop of blood, without a single scream from the animal undergoing the experiment. ↗