Which outcome occurs when a fish increases ventilation rate across its gills?

💡 Explanation

When ventilation rate increases, the countercurrent exchange mechanism works more efficiently because a greater flow of oxygenated water passes over the gill lamellae, enhancing oxygen diffusion into the blood. Therefore increased oxygen uptake occurs, rather than decreased excretion, altered pH or lowered chloride cell activity all requiring changes in separate mechanisms.

• Which outcome occurs when daytime arid temperatures limit C4 plants?
• Which outcome occurs when a CAM pathway plant lacks adequate water during peak daylight hours?
• Which condition arises when a bird's wing loading increases substantially during turbulent conditions?
• Which navigational problem would arise in monarch butterflies lacking properly developed olfactory maps?
• Which consequence occurs when a Batesian mimic fails?
• Which effect occurs when migratory birds encounter icing conditions that affect feather barbules?