The Combining Form Spir/o- Has Two Meanings,but the Meaning That

question 43

Short Answer

The combining form spir/o- has two meanings,but the meaning that pertains to the respiratory system is the meaning ____________.

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Definitions:

Substitute

A person or thing that becomes the replacement or alternative for someone or something else.

Morphine

A potent opiate analgesic drug derived from the opium poppy, used primarily for the relief of severe pain.

Heroin

An illegal opioid drug derived from morphine, known for its highly addictive properties and potential for abuse.

Extinction

In the context of psychology, the gradual weakening of a conditioned response when the conditioned stimulus is repeatedly presented without the unconditioned stimulus.