Reflex actions are controlled by : A. The cells B. The Spinal Chord C. The Brain D. The Nerves

The correct answer is: B. The Spinal Cord

A reflex action is an involuntary action that occurs in response to a stimulus. It is controlled by the spinal cord, which is a long, thin bundle of nerves that runs from the brain down the back. The spinal cord is responsible for sending messages from the brain to the body and from the body to the brain. It also controls many of the body’s automatic functions, such as breathing, heart rate, and digestion.

The other options are incorrect because:

• A. The cells are the basic units of life. They are responsible for carrying out the functions of the body. However, they do not control reflex actions.
• C. The brain is the control center of the body. It is responsible for many of the body’s voluntary actions, such as walking, talking, and thinking. However, it does not control reflex actions.
• D. The nerves are the pathways that connect the brain and spinal cord to the rest of the body. They carry messages from the brain and spinal cord to the body and from the body to the brain. However, they do not control reflex actions.