Many differences between living things of the same type can be observed, measured and recorded
EXAMPLE QUESTIONS
How are the members of one type of living thing (eg cats, humans) the same, and how are they different?
What different ways could you measure and record differences between living things of the same type?
THERE IS VARIATION BEWTEEN LIVING THINGS OF THE SAME TYPE
Each living thing is unique. For example, no two plants are exactly the same.
Every individual daisy is different in some way from every other daisy.
Every human is different from every other human.
Many of these differences can be observed, measured and recorded.
OBSERVING AND RECORDING LIVING THINGS
There are numerous different ways of observing and recording living things.
You can make notes, do drawings and take all sorts of measurements.
How you want to record living things will depend on what you are studying.
If you are studying humans you might want to look at:
Height
Weight
Hair colour
Eye colour
Lobed or lobeless ears
The variations in the features you observe may be partly due to inherited causes and partly due to environmental causes.
Species gradually evolve by a process of natural selection. Living things with the features best suited to their environment are most likely to survive and therefore reproduce.
