Embryonic Similarities

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Across
  1. 3. animals with backbones
  2. 7. The developing organism between fertilization and birth
  3. 8. Development of an embryo from fertilization through the fetus stage
Down
  1. 1. similar structures between different species coming from a common ancestor
  2. 2. The study of the similarities and differences of body structures of different species
  3. 4. A group of organisms with similar characteristics that are able to interbreed or exchange genetic material
  4. 5. The study of the structures of organisms and their parts
  5. 6. the study of similarities in embryos