The Nurse Researcher Is Using Respiratory Rate as a Variable

question 19

Multiple Choice

The nurse researcher is using respiratory rate as a variable in a research study. The level of measurement most appropriate in this case is what?

• A) Nominal
• B) Ordinal
• C) Interval
• D) Ratio

Explain the process of osmosis and its importance in cellular function.

Understand the purpose and method of polymerase chain reaction (PCR) in replicating DNA sequences.

Identify the role of ribosomes in protein synthesis within the cell.

Explain the concept of genetic constancy across different levels of biological organization.

---

Definitions:

Schwann Cells

The principal glia of the peripheral nervous system, responsible for the formation of myelin.

Peripheral Nervous System

The part of the nervous system outside the brain and spinal cord, comprising nerves that connect the central nervous system to limbs and organs, essential for relaying sensory and motor information.

Myelin

A fatty substance that surrounds the axons of many neurons, acting as insulation to speed the transmission of electrical impulses.

Myelin

A fatty substance that surrounds and insulates the axons of many neurons, enabling faster transmission of electrical signals.