Social Interaction Source Theory (Yo-He-Ho Theory)

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Across
  1. 5. The "Yo-He-Ho Theory" is also known as the Social ___________ Source Theory (10 letters).
  2. 7. The theory that language evolved through social ___________ (11 letters).
  3. 8. Language likely started as simple __________ before becoming complex (6 letters).
Down
  1. 1. A repetitive sound often used in chants (6 letters).
  2. 2. Early humans worked together to ______ heavy objects (4 letters).
  3. 3. Rhythmic sounds made during physical tasks (3 words).
  4. 4. An activity where people paddle together in rhythm (6 letters)
  5. 6. Another word for a group working on the same task (5 letters).