The part of the brain responsible for unconscious bodily functions is the:

Correct Answer: C

Rationale: The brain stem regulates unconscious functions like breathing, heart rate, and digestion, essential for survival.

Correct Answer: B

Rationale: Flatworms (e.g., planarians) show cephalization (head with nerve concentration) and a simple centralized nervous system, unlike sponges or cnidarians.

Correct Answer: B

Rationale: Humans have a highly developed visual cortex, emphasizing vision as a primary sensory modality.

Correct Answer: B

Rationale: Schizophrenia features hallucinations and delusions, distinguishing it from depression or dementia.

Correct Answer: A

Rationale: A neuron’s three basic parts are the cell body, dendrites, and axon; myelin is a sheath, pons is a brain region, and dura mater is a meningeal layer.