If a concentration difference exists for a nonpolar molecule across a biological membrane, it will move across the membrane until the concentration is

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.