Biology Crossword

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Across
  1. 2. flow physical movement of alleles from one population to another
  2. 7. inherited trait that is selected over time because it allows organisms to better survive in their environment
  3. 10. where animals or plants naturally live and grow
  4. 12. process in which two or more species evolve in response to changes in each other
  5. 13. All the living and non-living things that interect in an area.
  6. 15. A group of organisms of the same species populating a given area
  7. 16. trace of an organism from the past
  8. 20. Consumers that eat only plants
  9. 21. Different populations that live together in a defined area
  10. 22. A close relationship; both species benefit
  11. 24. Autotrophs convert light energy into chemical energy
  12. 27. A close relationship; one species benefits, the other is harmed
  13. 28. frequency proportion of one allele, compared with all the alleles for that trait, in the gene pool
  14. 29. Consumers that eat only animals
  15. 30. structure remnants of an organ or structure that functioned in an earlier ancestor
Down
  1. 1. principle that states that the changes in landforms result from slow changes over a long period of time
  2. 2. isolation isolation between populations due to physical barriers
  3. 3. drift change in allele frequencies due to chance alone, occurring most commonly in small populations
  4. 4. observable change in the allele frequency of a population over a few generations
  5. 5. The relation between two different species of organisms that are interdependent
  6. 6. differences in physical traits of an individual from the group to which it belongs
  7. 8. the study of the distribution of organisms around the world
  8. 9. factors Living things in an ecosystem
  9. 11. all of the individuals of a species that live in the same area
  10. 14. any living thing
  11. 17. group of organisms so similar to one another that they can breed and produce fertile offspring
  12. 18. Organism that can make their own food
  13. 19. Factors Non-living factors including temperature, water, sunlight, wind, rocks and soil
  14. 23. pool collection of alleles found in all of the individuals of a population
  15. 25. Species Species that enter new ecosystems and multiply, harming native species and their habitats
  16. 26. Taxonomic group whose members can interbreed