en science 14-15

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Across
  1. 2. A set of trails expressed by an individual
  2. 8. The death of the last member of a species
  3. 9. a change in the genetic composition of a population over time as a result of random mating
  4. 10. Evolution that gives rise to new species gnera families classes and organsim
  5. 12. A physical location on the chromosomes within each cell of an organism
  6. 13. Evolution below the species level
  7. 14. The number of species in a given area
Down
  1. 1. a reduction in the gentic diversity of a population caused by a reduction in its size
  2. 3. A trait that improves an individual's fitness
  3. 4. The branching pattern of evolutionary relationships
  4. 5. An individual's ability to survive and reproduce
  5. 6. A change in the genetic composition of a population as a result of descending from a small number of colonizing individuals
  6. 7. A change in the genetic composition of a population over time
  7. 11. A random change in the genetic code produced by a mistake in the copying practise
  8. 12. The complete set of genes in an individual trials type