Plant and Animal Hormones

Q2. All hormones act immediately and only for a very short time.

Q3. Thyroxine is produced by the thyroid gland.

Q4. Hormones are chemical messengers.

Q5. Adrenaline is associated with the fight-or-flight response.

Q6. Auxin is an animal hormone.

Q7. Adrenaline helps prepare the body for emergency responses.