Which "stage" in the process of making a protein should be inserted into step 2

5. to comply with implementation requirements, shops must ensure that paint booth exhaust systems use efficient spray booth filters. a) 75% b) 100% c) 50% d) 98%

Summarize the work of famous environmental scientists of the past.

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?