diegoantonio20p6xkjk
diegoantonio20p6xkjk diegoantonio20p6xkjk
  • 18-03-2020
  • Chemistry
contestada

Describe 2 theories for yawning

Respuesta :

kpgammons kpgammons
  • 18-03-2020

Answer:

alertness, cooling the brain

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