Chemical Coordination in Animal:
- Hormones are like messengers that help animals’ bodies work together.
- Glands in the endocrine system release hormones, which are special chemicals.
- These hormones control how animals grow and develop.
- Unlike nerve signals, hormones travel everywhere in the body and make changes as instructed by the brain and spinal cord.
- One important hormone is adrenaline.
- It quickly goes into the bloodstream and reaches different parts of the body.
- This hormone makes the heart beat faster to give muscles more oxygen.
- Breathing also speeds up.
- All these changes help animals get ready for what might happen.