Discuss some careers associated with the muscular ,skeletal, cardiovascular and integumentary system. which career interests the most and why?

Which of the following conclusions can be drawn

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

Which of the following explains why a tree is often used as a model to represent the principle of common descent