Selection Evolution and Variation Words I Now Know

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Across
  1. 6. A non-living part of an ecosystem that shapes its environment
  2. 9. A form or stage of an organism's life cycle
  3. 11. When a set of genes is expressed together, it produces a specific phenotype or trait
  4. 12. A chromosome's primary unit of heredity
  5. 15. A phrase used to describe long-term, predictable weather conditions
  6. 17. the process whereby organisms better adapted to their environment
  7. 18. The rivalry between or among living things
  8. 19. Living organism that shapes its environment
  9. 20. Form of natural selection in which a single curve splits into two
Down
  1. 1. The existence of variances in gene sequences among individual organisms within a species
  2. 2. A substance that nourishes the body
  3. 3. A term that is used to describe an allele, a gene, or a trait that is expressed
  4. 4. An animal or organism kills and eats another animal
  5. 5. Abrupt variation in which there are few or no intermediate forms
  6. 7. Occurs when a DNA gene is destroyed
  7. 8. reflects how well an organism is adapted to its environment
  8. 10. Being or produced by a form of a gene
  9. 13. The development of a species' traits over numerous generations
  10. 14. External agents that have an impact on an organism's ability to survive in a specific environment
  11. 16. A group of one species at a specific location