What can be said about the relationship between enzymes and proteins? a few enzymes are proteins. no enzymes are proteins. a few enzymes contain proteins. all enzymes are proteins. all enzymes contain proteins. most enzymes are proteins?

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

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.

Me.henley said, “in the rat race we call life, only the strong will survive.” he may have been referring to