record the numbers of leaves in a data table photograph each leaf type using a camera record the sizes of different leaves in a notebook calculate the percentages of all leaf types using a calculator
A researcher notices differences in the shapes of leaves on different trees of the same species. Which of these is the most accurate way to record these differences?

Options:
- record the numbers of leaves in a data table
- photograph each leaf type using a camera
- record the sizes of different leaves in a notebook
- calculate the percentages of all leaf types using a calculator

photograph each leaf type using a camera