Answer:
i think this is how they will look like
False. Pure substances that cannot be broken down into simpler substances by ordinary chemical means are called Elements.
The person would not have dimples.
I have no straight answer with ABDE as of your lack there-of. But here.
Gene flow is the introduction of genes/alleles between populations. An example is a flower having it´s pollen carried by a bee. The bee then introduces it (intentional or not.) to other flowers.
Another example is a pack of gray wolves suddenly having a different wolf introduced. *As long as it can breed, that is* They will slowly incorporate the new alleles/genes into the pack.
I wish you luck young lad.