passwella.
Menu

JAMB Biology 2010 Question 44

Question 44

Hormonal Coordination

Thyroxine and adrenalin are examples of hormones which control

  1. A.tongue rolling
  2. B.behavioural patterns
  3. C.colour variation
  4. D.blood grouping.
Show the answer and explanation

Answer: B (behavioural patterns)

Explanation

Adrenalin prepares the body for 'fight or flight' and thyroxine affects activity and alertness, so both influence behaviour. Tongue rolling and blood group are fixed by genes.