GCSE OCR Biology A (Gateway) · Topic 3
Organism Level Systems
In short
Topic 3: Organism Level Systems in GCSE OCR Biology A (Gateway) covers 3 topics: The Nervous System, The Endocrine System and Maintaining Internal Environments. Each one below lists the key points to revise.
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What is in Topic 3: Organism Level Systems?
Topic 3: Organism Level Systems
The Nervous System
- Neurones
- Reflexes
- The brain and the eye
The Endocrine System
- Hormones
- Hormones in reproduction
- Plant hormones
Maintaining Internal Environments
- Thermoregulation
- Blood glucose
- Water balance
Organism Level Systems: common questions
What is in Topic 3: Organism Level Systems?
It covers 3 topics: The Nervous System; The Endocrine System; Maintaining Internal Environments.
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