Across
- 1. the quality of being similar or corresponding in position or value or structure or function
- 3. English natural scientist who formulated a theory of evolution by natural selection
- 5. a change or alteration in form or qualities
- 6. living things collectively
- 8. the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
- 9. the gradual beginning or coming forth
Down
- 1. the total of inherited attributes
- 2. the quality of being qualified
- 4. undergo development or evolution
- 7. the branch of biology that studies heredity and variation in organisms