Nature vs nurture

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Across
  1. 3. a persons sexual orientation or preference
  2. 5. the study of living organisms
  3. 8. the scientists who came up with nature vs nurture
  4. 9. our environment makes us who we are(upbringing)
  5. 10. identical or fraternal ____
Down
  1. 1. a unit of heredity that is transferred from a parent to an offspring
  2. 2. biology and genes make us who we are(heredity)
  3. 4. the surroundings or conditions in which a person, animal or plant lives/operates
  4. 6. an IQ test, tests your ___
  5. 7. shy, extroverted, outgoing are all examples of ___