OCR GCSE Twenty First Century Science Suite - Combined Science B J260 · B5.4
Why do we need to maintain a constant internal environment?
- Code
- B5.4
- In
- B5 The human body – staying alive
- Course
- GCSE Twenty First Century Science Suite - Combined Science B J260
- Board
- OCR
Grade boundaries·OCR command words
Codes and titles are read by a script from OCR's published specification and have not been checked by a person. What each point covers is in the specification itself: OCR’s specification.
Points under B5.4
Points in B5 The human body – staying alive
- B5.1 How do substances get into, out of and around our bodies?
- B5.2 How does the nervous system help us respond to changes?
- B5.3 How do hormones control responses in the human body?
- B5.4 Why do we need to maintain a constant internal environment?
- B5.5 What role do hormones play in human reproduction?
- B5.6 What can happen when organs and control systems stop working?