D is the answer because the rest ate observations
Answer:
Each experiment reveals a different piece of information that is needed to develop the theory.
Explanation:
If all other resources are in adequate supply, then the light intensity will increase the rate of photosynthesis. To balance it out, other things then usually start becoming short in supply, so things often don't change.
Answer:
A. The new evidence could be accepted and the theory changed.
Explanation:
most reasonable answer
