Why is subculture necessary?

Related questions

1. What is confluent?
2. What happens at a confluence?
3. Do the Atlantic and Pacific Ocean meet?
4. What is the end of the river called?
5. What is a confluence zone?
6. What are passage cells?
7. What is it called when things come together?
8. How many rivers flow into the ocean?
9. What is Kafka?
10. What is a confluence town in Nigeria?

Tags

1. #growth
2. #cells
3. #continued
4. #toxic
5. #subculture
6. #proliferating
7. #culture
8. #fresh
9. #originating
10. #nutrients
11. #without
12. #death
13. #allowing
14. #produce
15. #lower
16. #therefore
17. #important
18. #density
19. #metabolites