​​Cortana Appears as an Animated Circle in the Address Bar

question 73

True/False

​​Cortana appears as an animated circle in the Address bar when it is turned on and you might need assistance.

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Definitions:

Intracellular Receptors

Proteins located inside the cell that bind to certain substances and initiate a specific cellular response.

First Messenger

A signaling molecule that binds to a receptor on the cell surface, initiating a signal transduction process that leads to the formation of an intracellular second messenger.

Ion Channel

An ion channel is a protein structure embedded in cell membranes that allows ions to pass through the membrane selectively.

Ligand

A molecule that binds specifically to another molecule, usually a larger one, in a reversible manner.