Its call a niche hope this helps :)
No, the answer is false.
A salad would be an example of a mixture, as it is a blend of tomatoes and lettuce.
A salad would be considered a heterogeneous mixture (you can see its different components).
Pigment photosynthesis and the comeellianGene
so ATP is adenine triphosphate
it has 3 phosphate groups, hence the 'tri'
it has nitrogen containing carbon rings
and it also had a carbon ring containing OH groups
i can't draw it on here but if you google the structure hopefully my explanation will make more sense