Evolutionary biology is the subfield of biology that studies the evolutionary processes that produced the diversity of life on Earth, starting from a single common ancestor. These processes include natural selection, common descent, and speciation. 

The discipline emerged through what Julian Huxley called the modern synthesis (of the 1930s) of understanding from several previously unrelated fields of biological research, including genetics, ecology, systematics and paleontology. 

Current research has widened to cover the genetic architecture of adaptation, molecular evolution, and the different forces that contribute to evolution including sexual selection, genetic drift and biogeography. The newer field of evolutionary developmental biology ("evo-devo") investigates how embryonic development is controlled, thus creating a wider synthesis that integrates developmental biology with the fields covered by the earlier evolutionary synthesis. 

Evolution is the central unifying concept in biology. Biology can be divided in various ways. One way is by the level of biological organisation, from molecular to cell, organism to population. An earlier way is by perceived taxonomic group, with fields such as zoology, botany, and microbiology, reflecting what were once seen as the major divisions of life. A third way is by approach, such as field biology, theoretical biology, experimental evolution, and paleontology. These alternative ways of dividing up the subject can be combined with evolutionary biology to create subfields like evolutionary ecology and evolutionary developmental biology.

Answer this series of questions:

1. What is a unifying concept?
2. Of what science?
3. Can it be split up into different ways?
4. Name one?
5. Can you provide an example?
6. And another example, please?
7. Is there another type of grouping?
8. And it is?
9. Example, please
10. And another?
11. Any more?
12. What are these known as?
13. Is there a third way to divide the science?
14. What is that?
15. How many examples can you provide?
16. Who helped develop the synthesis?
17. When?
18. Were the fields related?
19. What is the new field called?
20. And the abbreviated form is?

Numbered answers:
1. evolution
2. biology
3. yes
4. level of biological organization
5. from molecular to cell
6. organism to population
7. yes
8. perceived taxonomic group
9. zoology
10. botany
11. microbiology
12. major divisions of life
13. yes
14. by approach
15. Four
16. Julian Huxley
17. 1930s
18. no
19. Evolutionary biology
20. evo-devo