When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the C. experimental. Experimental variables are the things you are studying in the experiment and it is the only variable you can change.
The correct answer is D. RAMP because you use a ramp to reduce the amount of force needed to that work force. Hope This Helps!
bacteria can live in hotter and colder temperatures than humans but they do best in a warm moist protein-rich environment that is pH neutral or slightly acidic
The answer would be truly led
The answer is D the answer is D
