Which are true of beta radiation? Check all that apply.
A. It has a mass of 0.0005 amus.
B. It has no charge.
c. It doesn't change the mass number of the atom.
D. It causes transmutation.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

What processes would you expect to be key in the production of yogurt ?

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different