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Biology · Paper 2 · Foundation + Higher · B7

Required practical 7: transects

Key ideas1 of 3

Sample across a change

A transect follows a line across an environmental gradient, such as from a shaded hedge to an open field. Stretch a tape along the line and place a quadrat at fixed intervals. Record the target species at each distance. This is systematic sampling designed to investigate distribution along the gradient.

Sample the quadrat at 0 m from the hedge.

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Practice, downloads and sources

Daily 5 · Exam practice · Revision sheet ↓

Foundation + Higher · B7. Fifteen lessons for Foundation and Higher, including required practical 7.

AQA Combined Science Trilogy 8464 · 4.7.2.1 · Required practical 7. Original notes, questions and diagrams. Models are simplified; teaching data are illustrative.