Edexcel OLevel Biology revision notes

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Lesson

Lesson-4.1.5- understand how abiotic and biotic factors affect the population size and distribution of organisms.

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Lesson-4.1.4- practical: investigate the distribution of organisms in their habitats and measure biodiversity using quadrats.Previous Lesson-4.2.1- understand the names given to different trophic levels, including producers, primary, secondary and tertiary consumers and decomposers.Next