Dividing a Population into a Series of Subgroups and Taking

question 73

Multiple Choice

Dividing a population into a series of subgroups and taking random samples from within each group is known as what type of sampling?

• A)simple random
• B)snowball
• C)stratified
• D)nonrandom

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Definitions:

Membrane Potential

The electrical potential difference across a cell's plasma membrane, crucial for the conduction of impulses in muscle and nerve cells.

Channels

Structures that form pores in the membranes of cells and organelles, allowing the selective passage of ions or molecules across the membrane and thus contributing to vital physiological processes.

Calcium

A chemical element essential for living organisms, including bone formation, blood clotting, and muscle function.

Potassium

A chemical element with symbol K, essential for various bodily functions including nerve transmission and muscle contraction.