2. Variation, Homeostasis & Micro-organisms (WJEC GCSE Biology) Get ready for your WJEC GCSE Biology exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.
2. Variation, Homeostasis & Micro-organisms Revision Notes 2.1 Classification & Biodiversity Classification of Organisms Morphological & Behavioural Adaptations Interactions Between Population & Environment Biodiversity Sampling for Abundance and Distribution Capture/recapture Techniques Investigating Species Distribution & Abundance Biological Control Agents 2.2 Cell Division & Stem Cells Chromosomes Types of Cell Division Uncontrolled Mitosis & Cancer Stem Cells 2.3 DNA & Inheritance DNA Structure Role of the Triplet Code Process of Genetic Profiling Uses of Genetic Profiling DNA Profiling Genes, Alleles & Other Key Terms in Genetics Single Gene Inheritance Polygenic Inheritance Sex Determination Artificial Gene Transfer 2.4 Variation & Evolution Variation in Organisms Types of Variation Sexual Reproduction Mutations Natural Selection & Evolution Evolution in Action Understanding the Human Genome 2.5 Response & Regulation Sense Organs The Nervous System Reflexes Investigating Factors Affecting Reaction Time The Eye Homeostasis Hormones as Chemical Messengers Maintaining Blood Glucose Levels Diabetes Temperature Regulation Negative Feedback Mechanisms Lifestyle Choices & Medical Conditions Tropisms in Plants 2.6 Kidneys & Homeostasis Human Excretory System The Kidneys Nephron Structure Filtrate Composition Removal of Waste Testing Urine Regulating Blood Water Content Treating Kidney Failure Kidney Transplants Comparing Dialysis & Transplants 2.7 Micro-organisms & their Applications Aseptic Techniques Bacterial Growth Factors Affecting the Growth of Penicillium The Effect of Antibiotics on Bacterial Growth 2.8 Disease, Defence & Treatment Types of Micro-organisms Pathogens Common Communicable Diseases Mechanisms of Defence Antigens Do Vaccines Protect you from Disease? How do Vaccines Work? Memory Cells & Immune Response Antibiotics & Disease Preventing Medical Conditions New Medicines Monoclonal Antibodies Medical Uses of Monoclonal Antibodies WJEC GCSE Biology Past Papers