Uji Coba Penilaian AI — Reading

Until the late 1970s, marine biologists assumed that all oceanic food webs were ultimately fueled by solar energy captured through photosynthesis in shallow, sunlit waters. This paradigm was upended in 1977 with the discovery of hydrothermal vents along the Galápagos Rift, thousands of meters beneath the surface. Clustered around these mineral-rich chimneys, researchers encountered lush, thriving ecosystems teeming with giant tube worms, blind shrimp, and pale crabs, entirely divorced from sunlight. At the foundation of this abyss lies chemosynthesis. Rather than utilizing sunlight, specialized autotrophic bacteria oxidize hydrogen sulfide and other dissolved chemical compounds spewing from geothermal fissures. This process provides organic nourishment for the entire benthic community. The discovery demonstrated that complex life can flourish under extreme pressure, near-boiling temperatures, and toxic mineral concentrations, fundamentally reshaping scientific theories regarding the potential for extraterrestrial life in the subsurface oceans of icy moons.