A plant will start in a seed it will use a little water sunlight and carbon will help it to grow.
Then it will germinate it means to begin grow or sprouting.
Then the embryo grows root and pushes downward into the ground.The top of the embryo will begin to grow leaves.now the seed is a seeding or a baby plant this happens when carbon dioxide starts to become important.
now photosynthesis the plant uses the sugar to feed the plant so that it can continue to grow.
next the seed is a young adult or young plant these are bigger then a seedling
now it's a really mature plant this means it's fully grown and enough to reproduce.