What are the answers to a puzzle of tiny things?

10a=pathogenic

11d=lacticacid

1d=lyticcycle

2d=endospores

3d=host

4d=virus

7d=decomposers

8d=cocci

9d=spiralla

15d=consumer

6d=fission

5a=nitrogenfixing

12a=prokaryote

13a=antibiotics

14a=vaccine

16a=bioremediation