Why organisms need communication
Why organisms need communication
Multicellular organisms are made of many specialised cells, tissues and organs. Because different parts do different jobs, they must be coordinated so the whole organism responds as one.
Step-by-step lessons on OCR A A Level Biology Communication and homeostasis. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.