Answer:
80%-85%
Step-by-step explanation:
The percentage of dissolved oxygen absorbed during respiration in fish can vary depending on several factors, such as the species of fish, water temperature, and oxygen concentration in the water. Generally, fish use their gills to extract dissolved oxygen from the water for respiration.
On average, fish can absorb around 80 to 85 percent of the available dissolved oxygen from the water during respiration. However, this value can fluctuate based on environmental conditions, fish species, and individual physiological factors.
It's important to note that dissolved oxygen levels in water are critical for the survival of aquatic organisms. Insufficient oxygen levels can lead to hypoxia, which can be harmful to fish and other aquatic life. Monitoring and maintaining dissolved oxygen levels in aquatic environments are crucial for the health and well-being of aquatic ecosystems.