Photosynthesis occurs in plants and some bacteria, wherever there is sufficient sunlight, be it on land, in shallow water, or even inside and below clear ice. Together, photosynthesis and chemosynthesis fuel all life on Earth. However, in environments where there is no sunlight and thus no plants, organisms instead rely on primary production through a process called chemosynthesis, which runs on chemical energy. The majority of life on Earth is based on a food chain which revolves around the Sun, as plants use sunlight to make food via photosynthesis. Download larger version (mp4, 108.2 MB).Įcosystems depend upon the ability of some organisms to convert inorganic compounds into food that other organisms can then exploit (or eat!). Video courtesy of NOAA Ocean Exploration, Gulf of Mexico 2017. Places with chemosynthetic organisms can become oases of life in an environment often otherwise depleted of food. In the deep ocean, however, there is no light and thus there are no plants so instead of sunlight being the primary form of energy, chemical energy is produced via chemosynthesis. The majority of life on the planet is based in a food chain which revolves around sunlight, as plants make food via photosynthesis. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Diversity, Equity, Inclusion, and Accessibility.
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