A mutation could do that.
Semipermeable means the cell membrane can pick and choose what goes out of it and into it. At least, that's what I believe it is.
Answer:
C. hormone molecules
Explanation:
hormones are secreted in glands and are transported to the organs where they affect it and cause changes.
Bleach
workesgood it takes off all the stuff good
Answer:
eubacteria and archaebacteria
