Across
- 1. group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
- 5. branch of biology that deals with the geographical distribution of plants and animals
- 8. Selection-the process whereby organisms better adapted to their environment tend to survive and produce more offspring
- 9. Flow- the transfer of alleles or genes from one population to another
- 10. Descent-the scientific theory that all living organisms on Earth descended from a common ancestor
Down
- 2. process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
- 3. Principle-states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences
- 4. formation of new and distinct species in the course of evolution
- 6. Divergence-Divergent species are a consequence of divergent evolution
- 7. Drift-variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce