1.81 4.525 13.032 18.1 131.044
That's correct.
Yes.
community, organism, ecosystem and population
They are in the correct order.
You have them in the correct order.
No.
greatest
0, 1, 2, 3, 4, 5, and so on, are integers listed from least to greatest. I suspect that more information is needed to this question before a correct answer could be given!
Traditionally, least to greatest.
least to greatest
If your question is correct, there is no such thing as that; if it isn't, then it's either the least common factor, or the greatest common denominator.
< equals greatest and >equals least. <greatest >least.