Fill in the Blank with One of the Words or Phrases

question 18

Multiple Choice

Fill in the blank with one of the words or phrases listed below.
-The expressions (x - 5) and (5 - x) are called .

• A) expression
• B) rational expression
• C) opposites
• D) complex fraction

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Definitions:

Alpha Interferon

A type of protein produced by the body's immune system, used in the treatment of various infections and diseases, including some types of cancer.

Lymphotoxin

A cytokine produced by certain lymphocytes that can induce cell death and has a role in immune response.

Cytokines

Small proteins released by cells, particularly immune cells, that have a specific effect on the interactions and communications between cells.

Interleukin 4

A cytokine that plays a significant role in immune system regulation, promoting the development of T helper 2 cells.