Answer:
Step-by-step explanation:
1. Chemoautotrophs: these obtain energy through chemosynthesis
2. Cyanobacteria: a single celled prokaryote that evolved first using photosynthesis in manufacture of its food
3. Endosymbiotic theory: this theory explains about relationship between prokaryotic cells and eukaryotic cells
4. Hydrophytes: aquatic plants mostly adapted to life on water eg water lettuce
5. Mesophytes: land plants adapter to life on land with features helping them adapt to land
6. Photoautotroph: organisms that makes use of solar energy in the synthesis of their food
7. Xerophytes: plants adapter to life in dry, around regions eg cactus plant