Identify the INCORRECT statement about the human nervous system: MCQ with Answer and Explanation

Identify the INCORRECT statement about the human nervous system:
A. The cerebrum controls voluntary actions.
B. The hypothalamus controls reflex actions of the spinal cord.
C. The cerebellum maintains body balance.
D. The medulla oblongata regulates heartbeat and respiration.
Answer: Option B
Solution (By JKExamLibrary)
The hypothalamus regulates body temperature, hunger, and thirst, and controls the pituitary. Reflex actions are primarily coordinated by the spinal cord, not the hypothalamus. Hence, D is incorrect.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
Which radioactive isotope is commonly used for dating relatively recent fossils (up to about 50,000 years old)?
A. Uranium-238
B. Carbon-14
C. Rubidium-87
D. Potassium-40

Correct Answer: Option B


Explanation:
Carbon-14 (radiocarbon) dating is used to determine the age of organic materials up to about 50,000 to 60,000 years old. Living organisms absorb Carbon-14 from the atmosphere. When they die, absorption stops, and the Carbon-14 decays at a known rate (half-life of 5,730 years). By measuring the remaining Carbon-14, the age of the fossil can be calculated.

This question belongs to: Science Biology
Question #2
The type of root that develops from any part of the plant other than the radicle is called:
A. Primary root
B. Fibrous root
C. Taproot
D. Adventitious root

Correct Answer: Option D


Explanation:
Adventitious roots arise from stem, leaf, or other non-root tissues, unlike taproots and fibrous roots that develop from the radicle. Examples: prop roots of banyan, stilt roots of maize, aerial roots of orchids. They can serve support, aeration, or additional absorption.

This question belongs to: Science Biology
Question #3
The type of immunity that occurs after recovery from an infection is:
A. Artificial passive immunity
B. Artificial active immunity
C. Natural passive immunity
D. Natural active immunity

Correct Answer: Option D


Explanation:
Natural active immunity develops when a person is exposed to a live pathogen, develops an immune response, and creates memory cells. Artificial active is from vaccination. Passive immunity involves receiving antibodies.

This question belongs to: Science Biology