Evolution Vocabulary

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Across
  1. 2. Differences among individuals or populations in terms of their genetic makeup and physical traits.
  2. 4. The gradual change in species over time through the accumulation of genetic variations, resulting in the development of new species.
  3. 5. The branch of biology that studies genes, heredity, and the variation of inherited characteristics.
  4. 6. An early stage of development in multicellular organisms.
  5. 7. The genetic makeup of an organism, representing the specific combination of alleles it possesses.
  6. 8. An ancestral organism from which different species have evolved.
  7. 11. The passing of traits from parents to offspring through genetic information carried in genes.
  8. 12. A characteristic or trait that increases an organism's chances of survival and reproduction in a given environment.
  9. 14. One of the alternative forms of a gene that occupies a specific position on a chromosome.
  10. 15. The process by which new species arise through the accumulation of genetic differences over time, leading to reproductive isolation.
  11. 16. A random change in the DNA sequence of an organism, which can lead to new traits and genetic variation.
  12. 17. The ability of an organism to stay alive and reproduce in its environment, often influenced by various factors including adaptation and natural selection.
  13. 18. Similar anatomical features in different species, indicating a common evolutionary origin.
  14. 19. Preserved remains or traces of ancient organisms, often found in sedimentary rock layers.
Down
  1. 1. A diagram depicting the evolutionary relationships and common ancestry among different species.
  2. 3. The process by which organisms with favorable traits are more likely to survive and reproduce, leading to the gradual accumulation of advantageous traits in a population over generations.
  3. 6. Elements in an organism's surroundings that influence its traits and behavior.
  4. 9. The process by which organisms produce offspring.
  5. 10. Resemblances in the early stages of development among different species.
  6. 13. A trait or characteristic that enhances an organism's survival and reproduction in a specific environment.