Which could be classified as part of an ecosystem but not part of a community? A. trees
B. grasses
C. bacteria
D. minerals

do you have a list of sources to choose from?

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

1. explain aspects of the democratic process as it was developed in ancient athens

2. trace the roots of the americans political process to ancient athens

3. explain the relationship of citizens to the political process

polisit can also mean a body of citizens. in modern historiography, polis is normally used to indicate the ancient greek city-states, like classical athens and its contemporaries, and thus is often translated as "city-state". the body of citizens came to be the most important meaning of the term polis in ancient greece.