Question

Assertion (A): The control and coordination in higher animals called vertebrates takes place through nervous system as well as hormonal system.

Reason (R): The nervous system is made up of two main parts: central nervous system (consistingof brain and spinal cord), and peripheral nervous system (consisting of all the nervesof the body like cranial nerves, spinal nerves and visceral nerves).

Options

• Both A and R are true and R is correct explanation of the assertion.

• Both A and R are true but R is not the correct explanation of the assertion.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true but R is not the correct explanation of the assertion.

Explanation:

Control and coordination in vertebrates take place through both the nervous system and the endocrine (hormonal) system. Therefore, Assertion (A) is true.

The nervous system consists of the central nervous system (brain and spinal cord) and the peripheral nervous system (cranial, spinal, and visceral nerves). Therefore, Reason (R) is true.

However, Reason (R) does not explain why control and coordination take place through both the nervous and hormonal systems.

Hence, both A and R are true, but R is not the correct explanation of the assertion.