Biology
Biology study notes for senior school and first-year university: clear definitions, labelled diagrams, worked examples and practice questions with answers.
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Cold-Blooded vs Warm-Blooded Animals: Definitions, Differences and Examples
Ectotherms and endotherms in plain language, with diagrams, worked examples, tricky cases such as tuna and hummingbirds, and practice questions.
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Abiotic Factors: Definition, Examples and Abiotic vs Biotic Factors
What abiotic factors are, how each one affects living things, how they differ from biotic factors, and how to measure…
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Parts of a Microscope and Their Functions (Labelled Diagram)
A labelled diagram of the compound light microscope, what each part does, and how to work out magnification, field of…
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Mendel’s Pea Plant Experiment and the Law of Segregation
How Mendel’s pea crosses revealed the law of segregation, with his real counts, Punnett squares, a chi-square check and practice…