Answer:
There must be an independent variable, which changes throughout the course of an experiment; a dependent variable, which is observed and measured; and a controlled variable, also known as the "constant" variable, which must remain consistent and unchanging throughout the experiment.
Explanation:
None, the answer would be 2500
C . Cell wall because we don’t have a cell wall in us and we are considered animal cell.
Answer: your answer is between c and b
Explanation: