GUESS ESSAY WRITING
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The Human Ear Essay Question Marking Scheme
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Acquired Immunity Essay Question Marking Scheme
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Xylem Transport Essay Question Marking Scheme
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Drinking Water Treatment and Waste Water Management Essay Question Marking Scheme
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Explain the structure and functions of proteins
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Explain the secondary treatment of waste water management.
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Describe the structure and functions of the cerebrum.
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Describe the physical methods of sterilization
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Describe the threats to Biodiversity
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Mineralization and The Carbon Cycle Marking Scheme
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Write an account on gene mutations
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Describe the mutations due to change in chromosome structure and number.
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What is a resting membrane potential and how is it maintained
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What are the factors that affect transpiration?
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Describe the adaptations of the upper limb for movement over a wide range.
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What are embryonic stem cells
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Write an account on tissue culture
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Describe the general characteristics of enzymes.
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Mendelian Characteristics
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Inbreeding
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The Human Ear
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Acquired Immunity
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Xylem Transport
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Drinking Water Treatment and Waste Water Management
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Proteins
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The Human Brain
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The Methods of Sterilization
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Threats to Biodiversity
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Mineralization and The Carbon Cycle
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Gene Mutations
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Chromosomal Mutations
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Nerve Impulses and Synapse
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Transpiration & The Potometer
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The Upper Limb and Lower Limb
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Stem Cells
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Tissue Culture
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Enzymes
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Mendelian Characters, Pleiotropy, Incomplete Dominance, Epigenetics
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Plant and Animal Breeding
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2025 A/L Biology | GUESS ESSAY WRITTING | By Sethmika Hemachandra
I am Sethmika Hemachandra. In 2023, I completed my A/Ls and secured the Colombo district 9th position (Island 47th) in the Biology Stream and now I'm studying as a medical student in the University of Colombo. As a student, I've noticed that A/L Biology is a subject disliked by most students, myself included at the beginning. This is because it's often taught in a way that requires a large amount of fact memorizing. However, as I learned more about the subject, I came to see what an amazing subject it truly is. That's why I decided to pursue teaching Biology - to help students learn, understand, and enjoy the subject as I did.