
The human nervous system – Types of neurons
There are two coordination systems in humans The nervous system 2. The endocrine system

There are two coordination systems in humans The nervous system 2. The endocrine system

What are ions? How are ions formed? Positive ions – cations Negative ions – anions

Blood and its components Red blood cells White blood cells Platelets Plasma

Scientific method has the following steps: Observation Hypothesis Experiment Theory Conclusion

Using Resources: Life cycle assessment & Recycling Ways of reducing the use of resources Advantages of Recycling