Your answer will be B plants makes their own food. They also have a cell wall and animals don't.
A: In a lab a scientist measures the height of roses that received different fertilizers.
An experiment must include variables. The other three are just measurements, but since the scientist is varying the types of fertilizers used, this better describes an experiment. It is also done in a controlled environment (in a lab) which helps to eliminate other uncertainties.
Answer:
The endocrine functions of the pancreas and liver coordinate efforts to maintain normal blood glucose levels.
