A double replacement reaction is a reaction in which one element replaces a similar element within a compound. (2 points)
True
False

What is the chemical formula of the following compound

In an energy pyramid, which level has the most available energy?

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.