What is variation?
There are two types of variation, environmental and genetic:
Environmental factors are things you can do to your body that you do because of how you live. Like accent, scars or tattoos.
Genetically inherited factors are your sex, blood type and eye colour. These are all examples of your genetics that you inherited from your parents.
Are tattoos environmental or genetic?
Environmental
Are blue eyes environmental or genetic?
Genetic
Is having blonde hair environmental or genetic?
Genetic
Are scars environmental or genetic?
Environmental