Biology Paper 2
Sampling
Ecology training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Sampling is like a living system solving a small survival problem: each part has a job, and the answer depends on how those jobs connect.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Quadrats estimate abundance in a habitat.
Transects show how distribution changes across an environmental gradient.
Random sampling reduces bias.