The ____ Is a Bone in the Middle Ear of Tetrapod

question 76

Multiple Choice

The ____ is a bone in the middle ear of tetrapod vertebrates that evolved from, and is therefore ____to, the hyomandibula in early fishes.

• A) hyomandibula; homologous
• B) eardrum; analogous
• C) eardrum; unrelated
• D) stapes; unrelated
• E) stapes; homologous

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Definitions:

Dopamine

A neurotransmitter involved in many functions, including motivation, reward, and the regulation of mood and movement.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response, affecting heart rate and blood pressure.

Sodium

A chemical element (Na) that is essential for life, often found in salt.

Neurotransmitters

Chemical messengers that transmit signals across synapses between neurons in the nervous system.