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What is human chorionic gonadotropin, and what does it do?
Sea Stars
Marine invertebrates known for their star shape and ability to regenerate limbs, part of the echinoderm family.
Dung Beetles
Beetles that feed on feces, playing important ecological roles such as nutrient recycling and soil aeration.
Keystone Species
Species that have a disproportionately large impact on their environment relative to their abundance, crucial for ecosystem structure and function.
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