Water is called the universal solvent becausea)it is a nonpolar substance.  b)its molecule has no charge.  c)it is used around the world.  d)it dissolves a variety of substances.

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit

What are the three groups of atoms that make up amino acids called