Cell differentiation is your answer
Answer:D) dengue fever, yellow fever, and malaria
Answer:
Angle of light source
Explanation:
Independent variable is the variable that the experimenter changes or manipulates in an experiment in order to bring about a measurable response, which is the dependent variable.
In this question, a student wants to investigate the effects of phototropism in bean plants. She places a light source directly above one plant, at a forty-five degree angle to another, and at a ninety-degree angle from the third. This shows that the variable being manipulated (independent variable) is the ANGLE OF THE LIGHT SOURCE.
Gel electrophoresis can't be used for uncharged or neutral molecules, because the movement of the charged particles only make this happen
