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plants Plants that use rubisco to make a three-carbon compound as the first stable product of carbon fixation.
These plants may lose up to 50% of their recently-fixed carbon through photorespiration.
It plays a key role in the light-dependent reactions of photosynthesis, which convert sunlight into usable chemical energy.
Coniferous Trees that possess needle-like or scale-like leaves that are not dropped during cooler winter temperatures.
Carnivores Organisms that eat animals as opposed to plants.
Carotenoid One of the primary photosynthetic pigments involved in absorbing sunlight.
It is based on the observation that the ratio of C in the air at the time that the carbon was photosynthetically "fixed" by the plant that assimilated it out of the air.
Because carbon loses half of its radioactivity in 5,600 years, this decay rate can be used with the present-day ratio and a ratio from a sample of unknown age to date the unknown sample.
They figure prominently in the refrigeration industry and have been implicated in the breakdown of stratospheric ozone.