- DNA is the substance of our genes.
- he is a man of means.
- shigella is one of the most toxic substances known to man.
- the gist of the prosecutor's argument.
- the heart and soul of the Republican Party.
- the immune response recognizes invading substances.
- the nub of the story.
- What is the meaning of this proverb?.
- when the dough has enough consistency it is ready to bake.
- wool has more body than rayon.