Assertion (A): If a cockroach's head is severed, it will live for up to a week.
Reason (R) The cockroach's head contains a portion of its nervous system.
A and R are correct and R explains A
A and R are correct but R does not explain the A
A is wrong and R is correct
A is correct and R is wrong
Option (a)
The cockroach's nervous system is distributed throughout the body. The head contains a portion of the nervous system, while the rest of the body is located along the ventral sides. As a result, even if the cockroach's head is severed it can survive for up to a week.
Option1 is the correct answer.