Evolution Terminology (Review)

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Across
  1. 8. A lineage splitting event that produces two or more species
  2. 12. (2 words), This means to kill or inhibit the infecting organism without damaging the host
  3. 14. A repeatedly confirmed idea that is true in nature.
  4. 15. (2 words), Changes in populations due to isolation or sudden and large increases or decreases in population size; organisms do not share genes between populations
  5. 16. Suggests a common ancestor; these structures are built upon the same or similar structures with different functions
  6. 17. (2 words), shows the similarities in DNA evidence between two or more organisms
  7. 20. A well-substantiated explanation of the natural world.
  8. 21. The adjustment to new environments or changes to current environments; also, a trait that increases in frequency in populations that is beneficial to an organism's survival and reproduction
  9. 23. (2 words), Populations entering or leaving a population and sharing genes between populations; like migration
  10. 24. These types of structures typically have the same function, but have different structures
  11. 26. The relationships between species; uses a phylogenic tree or cladogram to identify the oldest species and newest species on branches
  12. 27. This word is used when an antibiotic becomes "useless" to persistent bacteria.
Down
  1. 1. A proposed explanation that is used as a starting point for research and explanations.
  2. 2. (2 words), study of body structures; can be vestigial, homologous, or analogous
  3. 3. A group of organisms that can reproduce freely in nature AND produce fertile offspring
  4. 4. (2 words), In a cladogram, this defines the ancestor shared by many other species
  5. 5. (2 words), Does not describe how life originated; it only describes what can be observed and tested in the natural world, and may predict that diversity in nature is due to evolution.
  6. 6. (2 words), mating with an individual with a certain trait (dance, smell, horns, etc). Also called sexual selection.
  7. 7. A change or difference in a population.
  8. 9. (2 words), "survival of the fittest"
  9. 10. Random changes to the DNA sequence in an organism; can be chromosomal or gene
  10. 11. The change in gene frequency in a population over time.
  11. 13. Focuses heavily on the evidence of structure similarity between all organisms and how they develop as embryos
  12. 18. An acronym used to explain how natural selection occurs in the natural world; variation, inheritance, selection of survival and reproduction, adaptation, and time
  13. 19. (2 words), show the progression of evolution and indicates that organisms from the past are not the same today; documents the existance of species from the beginning of time
  14. 22. Suggests that organisms have structures (or had) that they have evolved to not need; the appendix is an example of this type of structure
  15. 25. A general statement that is more useful at predicting than explaining; predicts how the natural world behaves