What will happen to an aquatic species if the water in the system has too many ions?

What will happen to an aquatic species if the water in the system has too many ions?

• A. Water will flow into the animal.
• B. Water will flow from the animals' bodies into the water.
• C. Temperature will increase in the tank.
• D. Fatal toxins will accumulate in the tank

Answer: (B)

Osmosis governs whether water moves into or out of an aquatic animal based on solute concentrations. If the water has many ions, the external environment is hypertonic relative to the animal’s body fluids. To balance the solute levels, water leaves the animal’s cells and body fluids and diffuses into the surroundings. This loss of water can cause dehydration and cell shrinkage, stressing tissues and organs and potentially leading to illness or death if severe. Temperature changes or toxins aren’t the main factors here; a hypotonic environment (fewer ions outside) would push water into the body instead.

Osmosis governs whether water moves into or out of an aquatic animal based on solute concentrations. If the water has many ions, the external environment is hypertonic relative to the animal’s body fluids. To balance the solute levels, water leaves the animal’s cells and body fluids and diffuses into the surroundings. This loss of water can cause dehydration and cell shrinkage, stressing tissues and organs and potentially leading to illness or death if severe. Temperature changes or toxins aren’t the main factors here; a hypotonic environment (fewer ions outside) would push water into the body instead.