Multiple Choice
Which of the following adaptations is most likely necessary for organisms to survive in desert environments?
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48. Ecology
Introduction to Ecology
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In ecological terms, is secondary succession generally faster or slower than primary succession?
A
Slower, because it requires more time for soil formation
B
Faster, because soil is already present
C
Faster, because it involves pioneer species
D
Slower, because it starts from bare rock
Verified step by step guidance1
Understand the concept of ecological succession: Succession is the process by which ecosystems change and develop over time. There are two main types: primary and secondary succession.
Define primary succession: This occurs in lifeless areas where there is no soil, such as after a volcanic eruption or glacier retreat. It begins with the colonization of pioneer species that can survive in harsh conditions and contribute to soil formation.
Define secondary succession: This occurs in areas where a disturbance has destroyed an existing community but left the soil intact, such as after a forest fire or human activity like farming.
Compare the speed of succession: Secondary succession is generally faster than primary succession because the soil is already present, allowing plants and other organisms to establish more quickly.
Consider the role of pioneer species: In primary succession, pioneer species are crucial for soil formation, which takes time. In secondary succession, the presence of soil means that pioneer species can quickly establish and facilitate the recovery of the ecosystem.
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