Secondary succession is the infer kind of succession that will take place on an abandoned, unpaved country road. Secondary succession is termed as one of the two types of ecological succession in the life of a plant. It is a process which is being started by an event for example harvesting, hurricane, and forest fire. which reduces an established ecosystem. Secondary succession occurs in a pre-existing soil and it is the ecological succession that occurs after the initial succession which has been disrupted and some animals and plants still exist.
The phenotypic ratio is the distribution pattern (expressed as a ratio) of the physical characteristics in the offspring obtained after a genetic cross.
