Examlex
Suppose that a consumer purchases just two goods, X and Y. The ratio of the price of good X to the price of good Y is the
Top of Ocean Food Chains
Predators that occupy the highest trophic levels in marine ecosystems, controlling the population and health of the ecosystem indirectly.
Predators
Animals that hunt, kill, and consume other organisms for food.
Invasive Species
Non-native organisms that spread rapidly in new environments, often causing harm to native species, human health, and economies.
Generalists
Organisms that have a broad niche and can thrive in a wide variety of environmental conditions and can make use of a variety of different resources.
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