__describes non-seasonal changed in the structure or composition of an ecological community over time Ecological succession
Community ecology
Ecosystem dynamics

Ecological succession

Explanation:

In ecology, ecological succession is described as a series of change in the structure or composition of an ecological community over a period of time. There are two types of ecological succession namely: primary succession and secondary succession.

Primary succession occurs on a barren land with no prior growth while secondary succession occurs in an area that has been colonized before but disturbed by an environmental hazard.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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