Multiple Choice
In an ecosystem, which trophic level do primary consumers occupy?
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48. Ecology
Introduction to Ecology
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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 must be true about pioneer species?
A
They are typically large, slow-growing organisms.
B
They depend on other species for survival.
C
They are the first to colonize a barren environment.
D
They require a stable environment to thrive.
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 pioneer species are the first organisms to colonize a barren or disturbed environment, initiating the ecological succession process.
Identify the characteristics of pioneer species: they are typically hardy, fast-growing, and able to survive in harsh conditions with minimal resources.
Consider the role of pioneer species in modifying the environment, making it more suitable for subsequent species by contributing organic matter and altering soil composition.
Conclude that pioneer species do not depend on other species for survival initially, as they are the first to establish in a new or disturbed environment, and they do not require a stable environment to thrive.
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