Human-made ecosystems are artificially created by humans, such as aquariums, zoos, botanical gardens, and orchards. Deserts, on the other hand, are natural ecosystems formed by climatic and geographical conditions.
12, 220, 322, 376, 402, 415
11 110 978 6824 34103 102290
132, 148, 196, 340, 762, 2068
31, 35, 62, 87, 430, 1761
2 27 43 50 56 57
...1 3 7 15 33
...24, (24 + 2p), (24 + 4p), (24 + 6p), (24 + 8p), (24 + 10p)
6, -3, 11, 21, 125, 715
1, 2, 8, 48, 386, 3840
28, 84, 42, 126, 68, 189
