The 'energy pyramid' is a that shows the amount of energy available in different groups of organisms in an ecosystem.

1. georgia constitution is adopted 2. radical reconstruction ends in georgia 3. atlanta becomes the official state capital 4. jefferson franklin long becomes the 1st black congressman from georgia what is the correct sequence of events? a) 1, 3, 2, 4 b) 1, 2, 3, 4 c) 3, 1, 4, 2 d) 4, 2, 3, 1

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

How did the mountains on the oregon trail influence the timing of pioneers’ travels? a.) the pioneers wanted to avoid times when there was snow in the mountains. the pioneers wanted to spend as much time as possible enjoying the mountain scenery. b.) the pioneers crossed the mountains in late fall when the trees were bare and the views were good. c.) the pioneers were rugged people who were not impacted by the terrain they crossed at any time.