List of top Zoology Questions on Respiration asked in TS EAMCET

Volume of air remained in lungs after normal expiration is known as

Consider the following statements:
Assertion (A): In cockroach, 6th abdominal ganglion is the largest ganglion.
Reason (R): It is formed by the fusion of ganglia of 7-10 abdominal segments.
The correct answer is