The cell is most likely a prokaryote
A type of cell with no nucleus
The answer would be Asexual Reproduction. This form only requires one organism, they germinate and birth their offspring, without the need of a Female or Male, speeding up the reproduction process
Good luck :)
Organism-population-community-ecosystem-biome in that order
Reactants of photosynthesis include light energy, H2O, and CO2. So I would imagine it’s H2O and CO2