An example of a food chain where pillbugs play a part.

Please name what each organism do, and how it helps the ecosystem.*

The little blue-gray critters that live under rocks and logs and roll into a ball when disturbed go by many names

Explanation:

The little blue-gray critters that live under rocks and logs and roll into a ball when disturbed go by many names: roly-poly bugs, pillbugs, woodlice, tiggy-hogs, parson-pigs and their scientific name, Armadillidium vulgare. Contrary to popular belief, roly-polies are not even technically bugs. But they do play an important role in ecosystems

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.