Biosphere, Ecosystem, Communities, Populations, Organisms, Organ systems, Organs, Tissues, Cells, Organelle.
Polymers assembled by individual nucletides; used to store and transmit hereditary or genetic info
The more air is in the jar, the longer the candle will be able to burn. So the candle in jar 3 probably burned for 4 minutes.
The candle in jar 4 would be able to burn much longer then the others, because it has no lid so air can come through and keep the candle burning.