OpenRTB Dynamic Native Ads API Specification Draft Version 1.1 RTB Project. 3 Bid Request Details. RTB transactions are initiated when an exchange or other supply source sends a bid request to. a bidder. The bid request consists of a bid request object, at least one impression object, and.
Healthy Eating. Lycopene is the natural substance (part of the carotenoid group) responsible for the deep red color in many foods, most particularly in tomatoes. However, this fact is not what lycopene is most famous for.
They also have a red pigment called phycoerythrin that absorbs green light and extends the range of photosynthesis. The red pigment lycopene is found in vegetables. Some red algae are in fact nearly black, so that increases their photosynthetic efficiency.