Multiple Choice
Which of the following is the most likely cause of succession in ecosystems?
105
views
1. Introduction to Biology
Natural Selection and Evolution
Multiple Choice
How are primary and secondary succession similar in the context of ecological succession?
A
Both start immediately after a volcanic eruption.
B
Both result in the formation of pioneer species only.
C
Both involve the gradual replacement of one community by another over time.
D
Both begin on surfaces where no soil is present.
Verified step by step guidance1
Understand the concept of ecological succession: It refers to the natural and gradual process by which ecosystems change and develop over time, involving the replacement of one biological community by another.
Define primary succession: This occurs in areas where no soil is initially present, such as after a volcanic eruption or on bare rock. Pioneer species, like lichens and mosses, are the first to colonize these areas and help create soil over time.
Define secondary succession: This occurs in areas where soil is already present but the previous community has been disturbed, such as after a forest fire or agricultural activity. It involves the regrowth of vegetation and gradual replacement of species.
Compare primary and secondary succession: Both processes involve the gradual replacement of one community by another over time, leading to a stable climax community. They differ in their starting conditions (presence or absence of soil).
Conclude the similarity: The correct answer is that both primary and secondary succession involve the gradual replacement of one community by another over time, highlighting the dynamic nature of ecosystems.
Related Videos
Related Practice
