Ecosystems are controlled by external and internal factors. External factors—including climate —control the ecosystem's structure, but are not influenced by it. Eco is built on a rich ecological simulation. All the data generated from the interaction of plants, animals, climate, and players can be searched and analyzed using in-game graphs and heat-maps. Look up eco- in Wiktionary, the free dictionary. The word eco may refer to ecology or economics. The word, or the initials E.C.O., may also refer to: Search for eco on Wikipedia. This disambiguation page lists articles associated with the title Eco. At Eco Window Systems, we are connected to the area, and we understand the conditions – for weather and business. Our focus is being the most trusted local source for quality impact solutions, serving builders, contractors and homeowners in the South Florida region. Since 2012, we’ve helped over 450 churches start and strengthen new approaches to the mission and ministry of the Church. Are you leading a church and looking for a denomination to be a part of? When you join ECO, you get the distinctives of a denomination but the freedom of a network. The U.S. Copyright Office provides an online platform for registering and depositing copyright materials. The U.S. Copyright Office facilitates online registration and deposit of copyright materials.