Answer:
I grow where no flower grows, where no light touches the walls, up or down, that I don't care, was here before people were.
Creatures of power, creatures of grade, creatures of beauty, creatures of strength. As for their lives, they set everything's pace. For all things must come to live. Under their emerald embrace Either in their life or in their death.
What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?
With pointed fangs it sits in wait. With piercing force it doles out fate, over bloodless victims proclaiming its might. Eternally joining in a single bite.
I am black when I am clean and white when I am dirty?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?