Absorb oxygen (O2)
Non- flowering plants
Release oxygen (02)
Ovule
Mosses
Anther
Stigma
Stems
Release carbon dioxide (C02)
Gymnosperms
Seed
Ferns
Filament
Flowering plants
Fruits
Angiosperms
Roots
Ovary
Absorb carbon dioxide (CO2), minerals and energy from sunlight
Leaves
Style
Flowers
