Who is trying to be friends with me lol btw I'm not 23. And does anyone know how to change your age on here?

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.

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

What state of matter is ice a. liquid b. element c. solid d. gas