Which of the Following Is Not a Method Used to Observe

question 72

Multiple Choice

Which of the following is not a method used to observe operations in the immune system?

• A) Lymphocyte count in a blood draw
• B) Extract blood, add cancerous tumor cells, and measure effectiveness of natural killer cells
• C) Inject a foreign agent in the skin and measure the amount of swelling
• D) Swab the inside of a cheek and measure the level of cortisol

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Definitions:

Data Collisions

Occur in a network when two devices attempt to transmit data over the same network channel simultaneously, leading to interference and loss of data.

Single Cable

A technology or solution designed to reduce clutter by combining multiple functions or connections within a single cable.

Local Area Network (LAN)

A network in which the nodes are located within a small geographic area.

Lab

A facility that provides controlled conditions in which scientific research, experiments, and measurement may be performed.