Can anyone help me with this pls :)​

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

As an asteroid comes close to earth, it's name will change to? apex

Astudent constructs a venom diagram to compare the organelle last in plant and animal cells which organelle should be listed under “both” in the diagram?