Describe how the rates of mitosis and apoptosis are maintained at the correct level and what might occur if there is too much or too little apoptosis.

Overview of A Level in Biology A:

Content is split into six teaching modules:
Module 1 – Development of practical skills in biology
Module 2 – Foundations in biology
Module 3 – Exchange and transport
Module 4 – Biodiversity,evolution and disease
Module 5 – Communication,homeostasis and energy
Module 6 – Genetics,evolution and ecosystems