Multiple Choice
Which of the following represents a change to an ecosystem brought about by abiotic factors?
382
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
In the context of ecological succession, what distinguishes secondary succession from primary succession at the start?
A
Formation of new land
B
Presence of existing soil
C
Initial colonization by pioneer species
D
Absence of any life forms
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.
Recognize that primary succession occurs in lifeless areas where there is no soil, such as after a lava flow or on a newly formed sand dune.
Identify that secondary succession takes place in areas where a disturbance has destroyed a community but left the soil intact, such as after a forest fire or hurricane.
Note that the presence of existing soil is a key factor that distinguishes secondary succession from primary succession at the start.
Realize that in secondary succession, the existing soil allows for faster colonization by plants and other organisms compared to primary succession, where soil formation is a necessary initial step.
Related Videos
Related Practice
Introduction to Ecology practice set
Problem sets built by lead tutorsExpert video explanations