OCR A-level Biology A H420 · 5.1.1(a)
Why multicellular organisms need communication systems
- Code
- 5.1.1(a)
- In
- 5.1.1 Communication and homeostasis
- Topic
- 5 Communication, homeostasis and energy
- Course
- A-level Biology A H420
- 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 in 5.1.1 Communication and homeostasis
- 5.1.1(a) Why multicellular organisms need communication systems
- 5.1.1(b) Cell signalling
- 5.1.1(c) Principles of homeostasis
- 5.1.1(d) Temperature control in ectotherms and endotherms