Buffer zones a. can regulate the acidity of aquatic ecosystems. b. increase erosion rates. c. are set up around natural resource areas. d. all of the above.

A. is your answer. hope this helps. sry if wrong.

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )