In the Body, Erythrocytes Are Red Because of the Oxidized

question 105

Multiple Choice

In the body, erythrocytes are red because of the oxidized iron they contain. In stained blood smears, erythrocytes are

• A) also red from iron.
• B) light blue from methylene blue.
• C) purple from hematoxylin stain.
• D) pink from eosin.

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Definitions:

Systematic observation

A structured method of data collection where the researcher carefully observes and records behavior according to a set of predefined criteria.

Reliability

Refers to the consistency and dependability of a measurement tool or test over time.

Nonverbal behaviors

Actions or gestures, excluding spoken words, through which people communicate emotions and intentions, like facial expressions or body posture.

Systematic observation

A method of research involving careful and consistent observation of phenomena according to a plan or system.