Multiple Choice
Which of the following best describes primary succession in an ecological context?
565
views
48. Ecology
Introduction to Ecology
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
When does secondary succession occur in an ecological environment?
A
In a newly formed sand dune
B
On a newly exposed glacial moraine
C
In an area where a forest fire has destroyed the vegetation
D
After a volcanic eruption creates new land
Verified step by step guidance1
Understand the concept of ecological succession, which is the process by which the structure of a biological community evolves over time. There are two main types: primary and secondary succession.
Primary succession occurs in lifeless areas where there is no soil, such as newly formed sand dunes or areas exposed by retreating glaciers. It involves the gradual establishment of a biological community in an area that was previously uninhabited.
Secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact. This can happen after events like forest fires, hurricanes, or human activities such as farming.
Identify the scenarios given in the problem: a newly formed sand dune, a newly exposed glacial moraine, an area where a forest fire has destroyed the vegetation, and new land created by a volcanic eruption.
Determine which scenario fits the definition of secondary succession. Since secondary succession occurs where the soil remains after a disturbance, the correct scenario is 'an area where a forest fire has destroyed the vegetation.'
Related Videos
Related Practice
Introduction to Ecology practice set
Problem sets built by lead tutorsExpert video explanations