Answer: A) lipid bilayers
Explanation: The lipid bilayer is made up of fatty acids and amphiphilic phospholipids (hydrophilic phosphate head and a hydrophobic tail).
The lipid bilayer controls molecules, ions that goes in and out of the cell.
Answer:
- Dependent variable: number of cells that are in one of the phases of mitosis
Explanation:
In an experiment, the independent variable is the variable that is not changed by the other variables that are being measured during the experiment (in this case, the independent variable is represented by the distances from the root cap). On the other hand, the dependent variable is the variable that is being measured/tested during the experimental procedure and, therefore, is 'dependent' on the independent variable. In consequence, in an experiment, the dependent variable is expected to change as a result of the manipulation of the independent variable.
C. the crust and upper mantle
