The eight planets in alphabetical order are earth, jupiter, mars, mercury, neptune, saturn, uranus, and venus. half of them are inner planets and half of them are outer planets. which of these planets are inner planets?

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