Tissues of Sharks Are Isotonic to Seawater,but Their Concentrations of Sodium

question 40

Multiple Choice

Tissues of sharks are isotonic to seawater,but their concentrations of sodium ions,potassium ions,and chloride ions in cells and extracellular fluids are similar to those of freshwater fishes.What can you infer about the movement of sodium and chloride in these animals?

• A)To maintain homeostasis of sodium and chloride levels, the shark must take up additional sodium and chloride from seawater.
• B)Sodium and chloride will diffuse into shark gills from seawater down their concentration gradient.
• C)Sharks conserve sodium and chloride, limiting excretion.
• D)Sodium and chloride must be eliminated through the gills.
• E)Sodium and chloride will diffuse from the sharks gills into seawater down their concentration gradient.

Comprehend the negotiability and characteristics of standardized contracts.

Understand the principles and applicability of quasi-contracts.

Identify and differentiate between unilateral and bilateral contracts.

Understand the circumstances under which contracts must be in writing according to the Statute of Frauds.

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Definitions:

Norms

Established standards of behavior and beliefs in a group or society.

Behavior

The actions or reactions of an object or organism, usually in relation to the environment or stimuli.

Role Conflict

A situation in which an individual faces conflicting expectations from different roles they fulfill in their life.

Social Dilemma

A situation in which individual decisions lead to outcomes that might be good for the individual but detrimental to the group.