A Hypothesis Is

question 117

Multiple Choice

A hypothesis is

• A) a researcher's predictions about what she or he will find in a study.
• B) an explanation that connects and organizes existing observations.
• C) a conclusion about cause and effect.
• D) a step-by-step description of an experiment.

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Definitions:

Packed Red Blood Cells

Red blood cells that have been concentrated and separated from whole blood for the purpose of transfusion, aimed at treating blood loss or anemia.

Platelet Count

A measurement of the number of platelets in a blood sample, important for diagnosing and monitoring bleeding disorders and other conditions.

Pursed-Lip Breathing

A breathing technique that involves exhaling through tightly pressed (pursed) lips and is often used by people with lung conditions to improve breathing.

Pulse Oximetry

A non-invasive method that measures the oxygen saturation level of the blood.