Answer:
Kingdom Plantae: Phylum Thallophyta: Algae
Step-by-step explanation:
Thallophyta or algae are simple green plants that are all aquatic. they have thread like (filamentous) or flat (thallus) bodies that do not have roots, stems or leaves.
Volvox is a simple green algae also a colonial algae. which as an algae has the ability to generate food due to chlorophyll in it.