Scientists routinely study large groups of organisms and other subjects that would be either too time-consuming or impossible to observe or count in totality. How do scientists tackle this issue? They use a technique called sampling. Sampling is when you observe a part of something to determine a characteristic or feature of the whole. It is a method used by many different types of scientists to study a variety of things, including organisms like birds and fish, as well as natural objects like rocks and even stars!
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