noun, Ecology. 1. a system, or a group of interconnected elements, formed by the interaction of a community of organisms with their environment. 2. any system or network of interconnecting and interacting parts, as in a business: The success of Appleâs ecosystem depends on hardware/software integration.
Two Types of Impact Craters. Impact craters can be categorized in one of two ways: simple or complex. A simple crater has a smooth bowl shape small with a small depth to diameter ratio. This ratio is typically 1:6 which means that if the crater is 1 m deep, it is 6 m wide.
Very few impact craters occur on the lava flows of Olympus Mons, suggesting that this volcano has probably erupted in the last few million years. Oblique view of the Olympus Mons volcano on Mars. The large depression in the upper center of the image is the caldera.