![]() There are carnivores that kill and eat other animals.In the ocean, an example of an herbivore would be a periwinkle grazing on some algae. There are herbivores that feed on plant material.Consumers obtain their energy in different ways:.Heterotrophs are also called consumers because they must consume other organisms for energy and nutrients. For organisms that cannot make their own food, they must ingest other organisms to fulfill their energy requirements.In coastal regions of the ocean, algae, such as kelps and rockweeds, and plants, such as sea grasses, are important primary producers.Two important types of phytoplankton that are diatoms and dinoflagellates. Some phytoplankton are bacteria and others are protists. Phytoplankton contribute 50% of the oxygen in our atmosphere. In the ocean, 95% of the primary production is done by microscopic phytoplankton. On land, primary producers are mostly plants such as grass in trees. Autotrophs are also known as primary producers, and are are a highly important food source for other organisms.Organisms that are able to capture energy either from sunlight or chemicals and convert it into a form that other organisms can use are called autotrophs.Photosynthesis and chemosynthesis make it possible for life to exist on Earth! These chemosynthetic microbes are the foundation of the food web in hydrothermal vent communities. ![]() For example, microbes living in hydrothermal vent communities are able to use inorganic chemical compounds through a process known as chemosynthesis to create energy. Life is possible, however, even in the absence of sunlight.This process removes carbon dioxide from the atmosphere and provides the oxygen that we breathe. Through photosynthesis, plants are able to capture energy from sunlight and use that energy to power reactions that transform carbon dioxide and water into oxygen and sugar molecules. For much of the life on Earth, the primary source of energy is from the sun.But where did the energy in those food sources come from? This energy comes from the organism’s ecosystem and in many cases from the food that organism eats.For example, when thinking about our Ocean Tracks species, a large amount of energy is required to migrate the thousands of miles they may travel. All living things require energy in order to survive and carry out their life processes, such as growth, reproduction and for their metabolism.
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