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Fish can adjust their buoyancy with an organ called a swim bladder. The swim bladder is a flexible gas-filled sac; a fish can increase or decrease the amount of gas in its swim bladder so that it stays neutrally buoyant, neither sinking nor floating. Suppose a fish is neutrally buoyant at some depth and then goes deeper. What needs to happen to the volume of air in the swim bladder

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As the fish goes deeper, the volume of air in the swim bladder increases.

What is Buoyant force?

  • Buoyant force is the upward force a fluid exerts on an object.

Buoyant force is calculated using the following formula;

F = ρVg

where;

  • ρ is the density of the fluid.
  • V is the volume of the fluid displaced.
  • g is acceleration due to gravity.

The volume of the fluid displaced is calculated as follows;

V = Ah

where;

  • A is the area of the object.
  • h is the depth of the fluid.

Thus, we can conclude that as the fish goes deeper, the volume of air in the swim bladder increases.

Learn more about Buoyant force here: https://brainly.com/question/3228409

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