Q4. Assertion: hormones are needed even though the body has a neural system. Reason: nerve fibres do not innervate all cells of the body, and cellular functions need continuous regulation. Are both true, and does the reason explain the assertion?
Both are true, and the reason explains the assertion (NCERT page 239).
Q5. In NCERT’s classical definition, where is a hormone carried after it is released into the blood?
To a distantly located target organ (NCERT page 239).
Q6. Name two organs that are not endocrine glands but still produce hormones.
Any two of the gastrointestinal tract, liver, kidney and heart (NCERT page 240).