Biology, 10.11.2020 19:20 maleah12x

The presence of air is believed to be important for root growth in bean plants. The apparatus available to conduct an investigation is shown
below. There are enough bottles and other materials to have multiple
setups. Additional air can be bubbled into the bottle through the rubber
tube. 17. State the purpose (or question) the experimental setup is
designed to test and write a possible hypothesis.*

The presence of air is believed to be important for root growth in bean

plants. The apparatus ava

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