The Outermost Tunic of the Eyeball Is the ________

question 208

Multiple Choice

The outermost tunic of the eyeball is the ________.

• A) iris
• B) sclera
• C) retina
• D) choroid
• E) conjunctiva

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Definitions:

Instruction A

Instruction A is not a specifically defined term in general contexts and may refer to the first or a particular instruction within a set in specific applications or systems.

Examine If Closed

A control system instruction or condition check to determine whether a circuit or valve is in its closed or off state.

Examine If Open

A control logic instruction used in PLC programming to check if a specific condition or input is false or "open" before executing subsequent instructions.

Output Energize

The process of activating an output device or circuit, thereby enabling it to perform its intended function, such as turning on a light or motor.