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← Nature & AnimalsWhich symbiotic advantage decreases when deep-sea vent tubeworms' chemosynthetic microbiome diminishes?
A)Toxicity resistance remains constant
B)Host ammonia detoxification weakens✓
C)Photosynthesis capacity decreases
D)Oxygen uptake pathway diversifies
💡 Explanation
Reduced microbiome activity impairs host ammonia detoxification, because oxidation via chemoautotrophy decreases ammonia levels; therefore, the tubeworm's tolerance drops, rather than photosynthetic capacity reducing (tubeworms lack chloroplasts) or oxygen uptake diversifying.
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