Multiple Choice
Which of the following is an example of an abiotic factor in the Sahara Desert?
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48. Ecology
Introduction to Ecology
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Which of the following best describes the third trophic level in a typical food chain?
A
Secondary consumers
B
Decomposers
C
Primary consumers
D
Producers
Verified step by step guidance1
Understand the concept of a food chain: A food chain represents the flow of energy through an ecosystem, starting with producers and moving through various levels of consumers.
Define trophic levels: Trophic levels are hierarchical positions in a food chain, where each level represents organisms that share the same function in the flow of energy. The first trophic level consists of producers, the second level consists of primary consumers, and the third level consists of secondary consumers.
Clarify the role of producers: Producers, such as plants and algae, are organisms that create their own food through photosynthesis and form the base of the food chain (first trophic level).
Explain primary consumers: Primary consumers are herbivores that feed directly on producers, occupying the second trophic level.
Describe secondary consumers: Secondary consumers are organisms that feed on primary consumers, typically carnivores or omnivores, and occupy the third trophic level in a food chain.
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