Question

How does a big plant or tree grow from a tiny seed?​

Answer 1

Answer:

During germination, the seed imbibes water and uses its internal food reserves to develop itself into a seedling with roots and leafs. From that point onwards, it uses photosynthesis to develop itself. In this stage, it grows exponentially, which explains why a small seed can develop into a large tree.

In tropical rainforests, in some cases, small seedlings are supported by root networks of adult trees and symbiotic fungi. This, or the limited amounts of light at the forest floor, enables them to survive until there is a hole in the canopy, usually when an adult tree falls down. The tree that fills the void the quickest will grow to a full-size tree...