BIOLOGY (neurotransmitters and related topics)

acetylcholine-neurotransmitter that serves a variety of purpose...

somatotropin-also known as HGH (human growth hormone).

alleged vestigial organs

* the appendix

* the tonsils

* the coccyx

* "junk" DNA

*the thymus

*OCD: Psychology or Physiology?-the origin of Obsessive Compulsive Disorder based on studies done by Freud and Rapoport.

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