Weeds growing in a recently burned patch of forest represent the first stage in

secondary succession

Explanation:

Ecological succession is the name given to the process in which an environment changes through the colonization of new biological communities. These communities settle gradually, in an orderly and progressive manner, and can colonize a place that is totally lifeless or that has been partially degraded by anthropic actions or natural disasters.

Succession is called secondary when it occurs in a partially destroyed environment, but has been previously occupied by another biological community. Although degraded, this environment offers more favorable conditions for the occupation of new communities, which makes the colonization of pioneer species faster. Examples of places that suffer secondary succession are areas destroyed by burning or deforestation and abandoned cultivated fields.

For this reason, we can say that weeds growing in a recently burned patch of forest represent the first stage of secondary succession.

the statement is true