Evolution

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Across
  1. 3. Who's theory is it?
  2. 5. What do the advantageous alleles allow the individual to do?
  3. 7. What is the theory called?
Down
  1. 1. What they have to do in order to pass on the alleles?
  2. 2. Adaptation allows the allele to survive here?
  3. 4. What evolves after this?
  4. 6. Sometimes they can be harmful leading to them dying out?
  5. 8. What are the things called which adapt?
  6. 9. What the alleles do to their environment?
  7. 10. What does the theory lead to?