Answer:Dalton just expanded on the Greek idea of the atom.
Explanation:
Compounds:
hydrogen
methane
hydrochloric acid
mixtures:
salt and water
oil and water
sugar and hot water
(stuff in day to day life basically)
Answer: The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. Not all molecules are free to diffuse. If plasma membrane ruptures or breaks down then molecules of some substances will freely move in and out of the cells.
