1. Key words: lake acidification, periphyton, microcosms, acid rain

2. Aquaria creates microcosms of nature in unique aquascapes and other miniature ecosystems

3. 15 In the beginning, ecologists built simple mathematical models and simple laboratory microcosms.

4. Classrooms serve as microcosms of the larger society, and the resources offered here, while focused on pedagogical practices, support broader commitments to anti-racist actions in higher education

5. Chemostats are also used as microcosms in ecology[BHMJA, PK] andevolutionary biology [WMB, DD, WWE, JE] as well as inwastewater treatmentbased on chemostat models [BHWW] and has led to numerous patents!!!!