Science

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Across
  1. 2. The scientist who developed the theory of natural selection. (DARWIN)
  2. 3. The study of embryos to determine evolutionary relationships. (EMBRYOLOGY)
  3. 4. The formation of a new species due to evolution. (SPECIATION)
  4. 7. Structures in different species that are similar in form but not necessarily in function, suggesting common ancestry. (HOMOLOGOUS)
  5. 8. The term used when a species completely disappears. (EXTINCTION)
  6. 10. occurs when unrelated species develop similar traits due to adapting to similar environments or ecological niches.(CONVERGENT)
  7. 11. A characteristic that increases an organism’s ability to survive and reproduce. (ADAPTATION)
  8. 12. remains of an organism (fossils)
  9. 13. The process where a single species evolves into many different species to fill various ecological niches.
  10. 14. An organism’s ability to survive and reproduce in a particular environment. (FITNESS)
  11. 15. in the chromosomes, which are made up of DNA (genes)
  12. 16. EXTINCTION)
Down
  1. 1. A structure in different species that has similar function but different anatomy, like wings of birds and insects. (ANALOGOUS)
  2. 3. to s group of organisms that share the same characteristics (species)
  3. 5. The concept that organisms compete for limited resources like food and mates. (COMPETITION)
  4. 6. that help build and repair body parts (proteins)
  5. 8. An adaptation where an organism mimics another species for protection. (MIMICRY)
  6. 9. A change in the genetic material of an organism that may lead to evolution. (MUTATION)
  7. 10. The sudden disappearance of a large number of species in a short geological time period.
  8. 11. A structure that has lost its original function through evolution, such as the human appendix. (VESTIGIAL)
  9. 13. to an organism in its early stage of development (embryo)
  10. 16. RADIATION)