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.
Time just flies when you have so many versions of NCIS to chose from, doesnât it? Another broadcast TV season has come to an end, and as expected, fictitious naval criminal investigators ruled the roost. Here are the top 50 most-watched shows between Sept. 22, 2014 and May 20, 2015. As is always the case, advertisers donât (usually) pay attention to total viewer counts â but itâs awfully hard to ignore those nearly 15 million fringe lovers who continue to tune into Dancing with the Stars.