| To receive omens regarding events that will occur throughout an entire year, perform ambulomancy, divination while walking. |
| Photosynthesis does not occur in a vacuum. In fact, it is inevitably paired with cellular respiration in most producers. |
| Among the flatfish, bothids are mainly found in deeper, less muddy situations while cynoglossids occur in shallower muddy areas. |
| Bird strikes, also referred as Avian ingestion when sucked into the plane's engine, commonly occur during takeoff and landing. |
| He describes how the movements of the jaw occur around a region in the upper cervical spine, namely around the atlanto-axial joint. |
| Because they are scavengers in a semiarid ecosystem where carrion is often limited, brown hyenas naturally occur in small numbers. |
