Biology of Plants: Evolution

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Across
  1. 3. Natural selection decreases __________ variation.
  2. 7. For evolution to occur, there is a struggle for _________.
  3. 8. Evolution happens in within a _______________.
  4. 9. Resources run out, population reaches ____________ _____________ where # births = # deaths.
  5. 11. Mutation and _____________ are sources of genetic variation.
  6. 12. For evolution to occur, Traits are ___________.
  7. 13. For evolution to occur, Traits are ___________.
Down
  1. 1. ____________ selection is evolution.
  2. 2. Fluctuations in allele frequency due to random chance (ex: sudden reduction in population size, random change in allele frequency).
  3. 4. Evolution is a _______.
  4. 5. Accumulation of genetic changes in populations of living organisms over many generations.
  5. 6. Evolution does not happen in an _______________.
  6. 10. If the new mutation increases _________, it will increase in the population until it is the only genotype left.