Evolution and Natural Selection

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Across
  1. 2. the study of how these processes scale with body size and with each other
  2. 3. a group of organisms that share an ancestor
  3. 7. changes in the gene pool of a population, enlarging the genetic variability from which natural selection can choose
  4. 10. the idea that species change over time, give rise to new species, and share a common ancestor
  5. 12. a change in the sequence of an organism's DNA
  6. 14. occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation
  7. 15. an evolutionary process by which a new species comes into being
  8. 17. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation
  9. 18. the process through which a fertilized egg becomes an adult organism
Down
  1. 1. genetic mutations that are beneficial to an individual's survival are passed on through reproduction
  2. 4. the dying out of a species
  3. 5. possess key traits that allow them to capture and consume their prey
  4. 6. having similarities in functions but different evolutionary origins
  5. 8. chromosomes have evolved continuously with the evolution of organisms
  6. 9. an animal that is fit is one that is adapted to its environment
  7. 10. can cause changes in the appearance, physiology, or behavior of an organism
  8. 11. a piece of a phylogeny that includes an ancestral lineage and all the descendants of that ancestor
  9. 13. the idea that species change over time, give rise to new species, and share a common ancestor
  10. 16. the adjustment of organisms to their environment in order to improve their chances at survival in that environment
  11. 19. the change in inherited characteristics or traits in a population of organisms over many generations