A crocodile had just eaten a lamb when a hawk saw the crocodile, attacked it, and consumed it. The hawk is in ecological terms:
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Answer: D. A tertiary consumer
Explanation
The hawk acts as a tertiary consumer by preying upon a secondary consumer that consumed a herbivore. Energy transfers upward through the food chain from the primary producer through multiple trophic consumer levels. Apex predators or top carnivores feeding on other carnivores occupy this specific high-level ecological classification. Food chains map the directional flow of nutritional energy through different organism feeding levels in nature. Secondary consumers are typically carnivores that feed directly upon herbivores or primary consumer organisms. Tertiary consumers occupy upper trophic positions and help regulate populations of lower-level predatory species.
Ecological pyramid models illustrate how energy diminishes significantly as it transfers to higher consumer levels. Pollutants and toxins often biomagnify in concentration as they ascend toward top tertiary consumer organisms. Wildlife managers study trophic structures to understand predator removal impacts on overall ecosystem stability. A producer refers to autotrophic organisms like plants that synthesize their own food via photosynthesis. A primary consumer is a herbivorous animal that feeds directly on plants as its primary energy source. A secondary consumer eats primary consumers but is consumed in this scenario by the higher-level hawk.
- Subject
- Agriculture
- Category
- Forestry
- Topic
- —
- Difficulty
- medium
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