WGU D664 OA EXAM / APPROVED WGU D664 FINAL EXAM LEARNERS AND
LEARNING SCIENCE OBJECTIVE ASSESSMENT (OA) ACTUAL EXAM TEST
BANK 2026/2027 PRACTICE QUESTIONS AND STUDY GUIDE ACCURATE
EXAM COMPLETE REAL QUESTIONS AND CORRECT VERIFIED ANSWERS
WITH DETAILED RATIONALES (RELIABLE ANSWERS) CURRENTLY
UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+ |FULL REVISED
WGU D664 FINAL EXAM LEARNERS AND LEARNING SCIENCE ACTUAL
EXAM|JUST RELEASED
Question 1
Which brain structure is primarily responsible for regulating
homeostasis, such as body temperature and hunger?
A. Amygdala
B. Hypothalamus
C. Hippocampus
D. Cerebellum
CORRECT ANSWER: B
Rationale: The hypothalamus maintains homeostasis by regulating
body temperature, thirst, hunger, and other autonomic functions.
The amygdala is primarily involved in emotional processing, the
hippocampus in memory formation, and the cerebellum in motor
coordination and balance.
Question 2
,A student struggles to form new long-term memories after a
traumatic brain injury. Which region is most likely damaged?
A. Basal ganglia
B. Prefrontal cortex
C. Hippocampus
D. Medulla oblongata
CORRECT ANSWER: C
Rationale: The hippocampus is critical for encoding new explicit
long-term memories. Damage to this region typically results in an
inability to form new memories while older memories may remain
intact. The basal ganglia is involved in motor learning, the prefrontal
cortex in executive functions, and the medulla oblongata in vital
autonomic functions.
Question 3
The "little brain" at the back of the skull coordinates fine motor
movements and balance. This structure is the:
A. Pons
B. Cerebellum
C. Corpus callosum
D. Thalamus
,CORRECT ANSWER: B
Rationale: The cerebellum is responsible for motor learning,
coordination, posture, and balance. The pons connects different parts
of the brain, the corpus callosum connects the two cerebral
hemispheres, and the thalamus relays sensory information.
Question 4
Which lobe processes auditory information and is involved in
language comprehension through Wernicke's area?
A. Frontal
B. Parietal
C. Temporal
D. Occipital
CORRECT ANSWER: C
Rationale: The temporal lobe processes auditory information and
contains Wernicke's area in the left hemisphere, which is crucial for
language comprehension. The frontal lobe is involved in executive
functions and speech production, the parietal lobe in spatial
processing, and the occipital lobe in visual processing.
Question 5
The corpus callosum:
, A. Produces cerebrospinal fluid
B. Connects the two cerebral hemispheres
C. Controls the pituitary gland
D. Regulates sleep-wake cycles
CORRECT ANSWER: B
Rationale: The corpus callosum is a massive bundle of axons that
facilitates interhemispheric communication between the left and
right cerebral hemispheres. It enables the integration of information
processed in different hemispheres.
Question 6
Damage to Broca's area would most directly impair:
A. Understanding spoken sentences
B. Fluent speech production
C. Reading comprehension
D. Visual recognition of faces
CORRECT ANSWER: B
Rationale: Broca's area, located in the frontal lobe of the left
hemisphere, is responsible for speech production. Damage to this
area results in expressive aphasia, where the individual understands
LEARNING SCIENCE OBJECTIVE ASSESSMENT (OA) ACTUAL EXAM TEST
BANK 2026/2027 PRACTICE QUESTIONS AND STUDY GUIDE ACCURATE
EXAM COMPLETE REAL QUESTIONS AND CORRECT VERIFIED ANSWERS
WITH DETAILED RATIONALES (RELIABLE ANSWERS) CURRENTLY
UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+ |FULL REVISED
WGU D664 FINAL EXAM LEARNERS AND LEARNING SCIENCE ACTUAL
EXAM|JUST RELEASED
Question 1
Which brain structure is primarily responsible for regulating
homeostasis, such as body temperature and hunger?
A. Amygdala
B. Hypothalamus
C. Hippocampus
D. Cerebellum
CORRECT ANSWER: B
Rationale: The hypothalamus maintains homeostasis by regulating
body temperature, thirst, hunger, and other autonomic functions.
The amygdala is primarily involved in emotional processing, the
hippocampus in memory formation, and the cerebellum in motor
coordination and balance.
Question 2
,A student struggles to form new long-term memories after a
traumatic brain injury. Which region is most likely damaged?
A. Basal ganglia
B. Prefrontal cortex
C. Hippocampus
D. Medulla oblongata
CORRECT ANSWER: C
Rationale: The hippocampus is critical for encoding new explicit
long-term memories. Damage to this region typically results in an
inability to form new memories while older memories may remain
intact. The basal ganglia is involved in motor learning, the prefrontal
cortex in executive functions, and the medulla oblongata in vital
autonomic functions.
Question 3
The "little brain" at the back of the skull coordinates fine motor
movements and balance. This structure is the:
A. Pons
B. Cerebellum
C. Corpus callosum
D. Thalamus
,CORRECT ANSWER: B
Rationale: The cerebellum is responsible for motor learning,
coordination, posture, and balance. The pons connects different parts
of the brain, the corpus callosum connects the two cerebral
hemispheres, and the thalamus relays sensory information.
Question 4
Which lobe processes auditory information and is involved in
language comprehension through Wernicke's area?
A. Frontal
B. Parietal
C. Temporal
D. Occipital
CORRECT ANSWER: C
Rationale: The temporal lobe processes auditory information and
contains Wernicke's area in the left hemisphere, which is crucial for
language comprehension. The frontal lobe is involved in executive
functions and speech production, the parietal lobe in spatial
processing, and the occipital lobe in visual processing.
Question 5
The corpus callosum:
, A. Produces cerebrospinal fluid
B. Connects the two cerebral hemispheres
C. Controls the pituitary gland
D. Regulates sleep-wake cycles
CORRECT ANSWER: B
Rationale: The corpus callosum is a massive bundle of axons that
facilitates interhemispheric communication between the left and
right cerebral hemispheres. It enables the integration of information
processed in different hemispheres.
Question 6
Damage to Broca's area would most directly impair:
A. Understanding spoken sentences
B. Fluent speech production
C. Reading comprehension
D. Visual recognition of faces
CORRECT ANSWER: B
Rationale: Broca's area, located in the frontal lobe of the left
hemisphere, is responsible for speech production. Damage to this
area results in expressive aphasia, where the individual understands
