Which of these cells of the dermal tissue of plants prevent water loss and control gas exchange?
a phloem cells
b companion cells
c parenchyma cells
d guard cells
if you answer it right and fast i will mark you as brailenist

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.