Plantonoid Fact #2

Plantonoid is an organism that had few of life source elements. First, it's food, like human foods. and second is Sun Energy. Like the usual plant, the plantonoids couldn't survive without Sun Energy. That's why each plantonoids had provided a device to absurd and store sun energy (in TOMA's case is her headband) as a supply when they were at a sun blocked place or dark place.
Without those device, they would collapse after few hours when night or at dark place and would wake up after morning or got enough energy source.
The other Energy source is Oxygen. like an organism in common.