In plants, photosynthesis occurs mainly within the leaves. Since photosynthesis requires carbon dioxide, water, and sunlight, all of these substances must be obtained by or transported to the leaves. [ Carbon dioxide is obtained through tiny pores in plant leaves called stomata. Oxygen is also released through the stomata. Water is obtained by the plant through the roots and delivered to the. leaves through vascular plant tissue systems. Sunlight is absorbed by chlorophyll, a green pigment located in plant cell structures called chloroplasts.
Super Bowl XLIX, a thrilling contest that came down to an unbelievable interception in the fourth quarter, has become the most watched show in television history. According to numbers released by the ratings agency Nielsen, 114.4 million Americans tuned in to watch the Patriots beat the Seahawks 28 to 24 on Sunday.
But dig deeper into the international ratings, and you quickly discover international audiences have some pretty random tastes in television. In France, for example, ABCâs short-lived 2014 crime drama Forever (the one about an immortal coroner) currently stands as the most-watched American TV show of the year. And in Romania, Lifetimeâs now-dead Drop Dead Diva is a top-ten hit.