Who conducted the bell jar experi- ment to prove the importance of oxygen?

The bell jar experiment shows that

The aim of th.e abo~e experiment to prove the importance of ........ In photosynthesis.

We have conducted experiment that proves the release of oxygen when photosynthesis happens ? i) What are the plants used for this experiment ? Where do they grow ? ii) How did you conduct the above experiment ? In which context are large number of air bubbles released? Did you notice?

The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow Name the factor studied in this experiment

Who conducted an experiment on rats to test the Lamarck's theory?

Who conducted the famous bell - jar experiment using mint plant, rat and candle?