The 4 organizations of living things from MOST complex to LEAST complex are A) Cells -> Tissues -> Organism -> Organ System
B) Cells -> Tissues -> Organs -> Organ System
C)Organ System -> Organism ->Tissue -> Cell
D)Organ System -> Organ -> Tissue -> Cell

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

If a cell is placed into a hypertonic environment, what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution