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GCSE Combined Science · key term
An individual living thing.
Used by AQA and Edexcel
Specification 4.7.1.1 · Paper 1, Paper 2
Revise: Principles of organisationA cell is the basic structural and functional unit of a living organism. All living organisms are made of cells. A unicellular organism consists of just one cell, whereas a multicellular organism consists of many cells.
A single living individual.
Paper 1, Paper 2
A single living thing.
Revise: Ecosystem Organisation and InterdependenceEcologists study organisms in relation to their surroundings. An organism is one living thing, such as an individual oak tree. To understand its surroundings, we can consider progressively broader levels of organisation.
Keep the levels in order: cell → tissue → organ → organ system → organism.
A population contains organisms of one species; a community contains all the populations in an area.
Distinguish population size, meaning how many organisms there are, from distribution, meaning where they occur.
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