Starter quiz
- Match each example of variation between humans to their cause.
- Hair that is dyed pink ...⇔is only caused by a lifestyle choice. ✓
- Having blood type A ...⇔is only caused by genetic factors. ✓
- Body mass ...⇔is caused by a combination of factors. ✓
- A person's first (native) language ...⇔is only caused by environmental factors. ✓
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