Articles > Fish – Quiz Fish – Quiz Quiz Choose the best answer. 1. The factor responsible for fish species to occupy certain or specific regions of the Earth Temperature Salinity Biotic factor Geological change 2. Biological process that help fish to thrive in aqueous habitat Osmoregulation Metamorphosis Competition Genetic mutation 3. A form of symbiosis wherein organisms compete for available food Mutualism Commensalism Predation Competition 4. Which of these factors influenced the evolution of fish? Sunlight Geological changes Predator/Consumer relationship All of the above 5. These are the characteristics of fish except for: Cold-blooded Vertebrate With gills and fins Exoskeleton Send Your Results (Optional) Your Name To Email Time is Up!