What does pH measure?

A. The total number of acid molecules in solution?

B. The concentration of hydrogen lons in solution?

C. The concentration of oxygen atoms in solution?

D. The total number of base molecules in solution?

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a.both make it possible for the conditions in the interior to be different from the conditions outside. b.both provide a barrier that keeps water from flowing across it so the interior remains dry. c.both separate the rna that forms in the interior from any rna that might form in the environment. d.both can actively move molecules into the interior or out into the surrounding environment.

Why can't you grow plants with adhesion water?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.