Which are statements that are true about ecosystems? 1. hunters have a part in balancing the earth's ecosystems. 2. in a healthy ecosystem, the removal of one organism will have little effect on the rest of the ecosystem. 3. the sun is the primary source of energy in an ecosystem. 4. your backyard is an ecosystem. 5. the health of an ecosystem is sometimes improved by human activities. 6. producers return nutrients to the soil.

The difference between the lower class limits of adjacent classes provides the

“dear sir: it is with great reluctance, i trouble you on a subject, which does not fall within your province; but it is a subject that occasions me more distress, than i have felt, since the commencement of the war; and which loudly demands the most zealous exertions of every person of weight and authority, who is interested in the success of our affairs. i mean the present dreadful situation of the army for want of provisions, and the miserable prospects before us, with respect to futurity. it is more alarming than you will probably conceive, for, to form a just idea, it were necessary to be on the spot. for some days past, there has been little less, than a famine in camp. a part of the army has been a week, without any kind of flesh, and the rest for three or four days. naked and starving as they are, we cannot enough admire the incomparable patience and fidelity of the soldiery, that they have not been ere this excited by their sufferings, to a general mutiny or dispersion. strong symptoms, however, discontent have appeared in particular instances; and nothing but the most acitive efforts every where can long avert so shocking a catastrophe.” what’s the central idea?

Amember of congress acting as a trustee casts a vote for a bill based on his or her