DENDROLOGY

Detailed explanation-1: -Sapling is a young tree with 1 to 6 inches diameter at breast height. In contrast, a seedling is a very young plant with less than a 1-inch diameter at breast height. Thus, this is the key difference between sapling and seedling. Moreover, a seedling has adolescent leaves while a sapling has adult leaves.

Detailed explanation-2: -The plant life cycle consists of four stages; seed, sprout, small plant, and adult plant. When the seed gets planted into the soil with water and sun, then it will start to grow into a small sprout.

Detailed explanation-3: -The stages that plants go through are from seed to sprout, then through vegetative, budding, flowering, and ripening stages.