Eventually the CO 2 is handed on to, and refixed by, the Calvin cycle. C4 pathway A pathway of carbon fixation, found most commonly in tropical plants that have high rates of growth and photosynthesis and that are adapted to high temperatures, strong light, low carbon dioxide levels, and low water supply.
Raleigh Television Network (RTN) Raleigh Television Network (RTN) is designed to serve the people of Raleigh. If you want to be thoroughly informed about your City and County governments, enjoy community events, and inform your neighbors about your nonprofit group or concerns, then RTN has all that you need. RTN10 - Community.
PSTN (public switched telephone network) Share this item with your network: PSTN (public switched telephone network) is the world's collection of interconnected voice-oriented public telephone networks, both commercial and government-owned. It's also referred to as the Plain Old Telephone Service (POTS).