Sharks Maintain Osmotic Equilibrium with the Ocean Water by the Kidney

question 69

Multiple Choice

Sharks maintain osmotic equilibrium with the ocean water by the kidney conserving _______,allowing it to accumulate in the blood until osmolarity is near that of seawater.

• A)ammonia
• B)sodium ions
• C)calcium
• D)all salts
• E)urea

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Definitions:

Obsessive-Compulsive Disorder

A mental disorder characterized by unwanted repetitive thoughts (obsessions) and/or actions (compulsions).

Excessive Cleansing

A behavior pattern characterized by an overemphasis on cleanliness, sometimes indicative of an underlying anxiety disorder.

Common Compulsion

Repetitive behaviors or mental acts that an individual feels driven to perform in response to an obsession or according to rules that must be applied rigidly.

Obsessive-Compulsive Disorder

A mental disorder characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions) that one feels compelled to perform.