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Energy transfers in and between organisms - A Level only (3.5)
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Nutrient cycles - AL only (3.5.4)
Study notes
Overview
Favourites
A Level essentials
Practical biology for exams
Biological molecules (3.1)
Cells (3.2)
Organisms exchange substances with their environment (3.3)
Genetic information, variation and relationships between organisms (3.4)
Energy transfers in and between organisms - A Level only (3.5)
Photosynthesis - AL only (3.5.1)
Respiration - AL only (3.5.2)
Energy and ecosystems - AL only (3.5.3)
Nutrient cycles - AL only (3.5.4)
Organisms respond to changes in their internal and external environments - A Level only (3.6)
Genetics, populations, evolution and ecosystems - A Level only (3.7)
The control of gene expression - A Level only (3.8)
Study notes
Overview
Favourites
A Level essentials
Practical biology for exams
Biological molecules (3.1)
Cells (3.2)
Organisms exchange substances with their environment (3.3)
Genetic information, variation and relationships between organisms (3.4)
Energy transfers in and between organisms - A Level only (3.5)
Photosynthesis - AL only (3.5.1)
Respiration - AL only (3.5.2)
Energy and ecosystems - AL only (3.5.3)
Nutrient cycles - AL only (3.5.4)
Organisms respond to changes in their internal and external environments - A Level only (3.6)
Genetics, populations, evolution and ecosystems - A Level only (3.7)
The control of gene expression - A Level only (3.8)