Classification & Evolution - Revision Crossword

Edit Answers
1234567891011121314151617181920212223
Across
  1. 4. The study of fossils and the fossil record
  2. 6. A different form of the same gene
  3. 10. A theory that describes the way in which organisms evolve, or change, over many years as a result of natural selection
  4. 14. The largest taxonomic rank in classification
  5. 15. A form of variation where measurements can take any value within a range
  6. 18. A form of evolution where unrelated species begin to share similar traits and adaptations
  7. 19. A measure of the spread of data (two words)
  8. 21. The study of evolutionary relationships between organisms
  9. 22. A form of variation that occurs within a species
  10. 23. A process where chromosomes exchange sections of DNA during cell reproduction (two words)
Down
  1. 1. A change in the DNA sequence of a gene or non-coding section of DNA
  2. 2. A characteristic that increases an organism's chance of survival
  3. 3. A process where the frequency of advantageous alleles within a population increases over time (two words)
  4. 5. A cell organelle that is used to differentiate different domains in taxonomy
  5. 7. A structure that serves the same function but has different structures in different organisms
  6. 8. One of the two taxonomic ranks used in binomial nomenclature, along with species
  7. 9. A form of variation that can only be measured with discrete values with no values in between
  8. 11. A form of cell reproduction that results in different genetic material in offspring
  9. 12. A form of variation that occurs between different species
  10. 13. A taxonomic rank that includes Prokaryotae, Protoctista and Animalia
  11. 16. A structure that can serve different functions in organisms but has the same underlying structure
  12. 17. A form of variation based on DNA
  13. 20. The smallest and most specific taxonomic rank in classification