Biology, 27.11.2021 01:00 alannismichelle9

A student set up a controlled experiment to investigate the conditions needed for germination. She placed moist cotton wool and soaked alfalfa seeds in two large sealed flasks. Flask A contained sodium pyrogallate solution, which absorbs oxygen from the air. Flask B contained sodium hydroxide solution, which absorbs carbon dioxide from the air. After 24 hours, she found that the seeds had germinated in flask B only.

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A student set up a controlled experiment to investigate the conditions needed for germination. She p...