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GCSE Biology Glossary
Get ready to master GCSE Biology with our comprehensive glossary, which provides clear, simple definitions for all the key terms you need to know. Written by expert teachers and examiners who know exactly what it takes to ace your exams, our GCSE Biology glossary helps you to improve your understanding of essential terminology needed to achieve the best grades. Stay ahead with our regularly updated definitions of key GCSE Biology terms.

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- Abiotic Factor
- Absorption
- Abstinence
- Accommodation
- Acid Rain
- Active Site
- Active Transport
- Adaptation
- Adh (Antidiuretic Hormone)
- Adrenal Medulla
- Adrenaline
- Adult Cell Cloning
- Adult Stem Cells
- Aerobic Respiration
- Agar Plate
- Allele
- Alleles
- Alveolus
- Amino Acids
- Amylase
- Anaerobic Respiration
- Animal Cells
- Antibacterial Chemicals
- Antibiotic
- Antibody
- Antimicrobial Resistance (Amr)
- Antiretroviral Drugs
- Antiseptic
- Antitoxins
- Antivirals
- Aorta
- Apex Predator
- Aphids
- Archaea
- Arteries
- Artificial Heart
- Artificial Pacemaker
- Aseptic Technique
- Asexual Reproduction
- Aspirin
- Atp
- Atrium
- Autoclave
- Auxin