Table 40.1 -The Intercellular Concentration of Three Electrolytes Is Compared with the with the Concentration

question 29

Multiple Choice

Table 40.1
-The intercellular concentration of three electrolytes is compared with the concentration of these electrolytes in fluid eliminated from the shark rectal gland in Table 40.1. Based on the data, which of the following is a likely function of the rectal gland?

• A) The rectal gland eliminates metabolic waste.
• B) The rectal gland is able to concentrate Na⁺, K⁺, and Cl^- .
• C) There is very little potassium in sharks.
• D) Chloride levels in seawater are similar to those in shark tissues.

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Definitions:

Variables

Variables are any characteristics, numbers, or quantities that can be measured or quantified, which change or vary across different situations.

Age

The length of time that a person or thing has existed.

Operational Definition

A statement of the procedures or ways in which a research concept is measured and turned into a variable.

Inferential Statistics

A branch of statistics that allows us to infer trends about a population based on samples from that population.