Answers

2016-01-28T20:06:24+08:00
It can be used as food. Others in soy sauce. Involved in decomposing organic material. Used in penicillin. Harmful protist causing ringworm. -Ae
1 3 1
2016-01-30T12:19:16+08:00
Five uses of protists : I'll add one
- Whipped cream
- Ice cream
-Tooth paste 
- Dog food
- Pudding 
- Yogurt
1 5 1
That is all I know about the use of Protists.