Evolution and Natural Selection Vocab

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Across
  1. 3. the process of species changing over time
  2. 5. fighting over resources like food, water, and space
  3. 7. how the body of an organism is built
  4. 9. the selection where nature chooses the best traits fit for an environment
  5. 11. any differences in traits between one species
  6. 12. producing more offspring than can possibly survive (similar to overpopulation)
  7. 14. structures that are built similarly, but used for different functions
  8. 15. any trait or behavior that helps an organism survive
  9. 16. ancient remains of organisms that lived long ago
Down
  1. 1. structures that still exist but are no longer useful to the organism
  2. 2. the man responsible for starting the research of natural selection
  3. 3. a young and developing organism that looks very similar to other species before birth
  4. 4. the genetic structure in cells responsible for traits
  5. 6. and characterisitic that can be inherited and passed down
  6. 8. the selection where humans choose the best traits they desire
  7. 10. structures that are built differently, but used for similar functions
  8. 13. the part of finches that changed based on the food they ate