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- https://bio.libretexts.org/Bookshelves/Human_Biology/Human_Biology_(Wakim_and_Grewal)/24%3A_Ecology/24.05%3A_Energy_in_EcosystemsThere are two basic types of organisms in terms of how they obtain energy: autotrophs and heterotrophs. Autotrophs (a.k.a producers) are organisms that use energy directly from the sun or from chemica...There are two basic types of organisms in terms of how they obtain energy: autotrophs and heterotrophs. Autotrophs (a.k.a producers) are organisms that use energy directly from the sun or from chemical bonds. Heterotrophs (a.k.a consumers) are organisms that obtain energy from other living things.
- https://bio.libretexts.org/Courses/Butte_College/BC%3A_BIOL_2_-_Introduction_to_Human_Biology_(Grewal)/Text/24%3A_Ecology/24.05%3A_Energy_in_EcosystemsIt’s easy to see why the aquatic creature in this photo is commonly called a sea angel. It has gossamer-like “wings” that flutter gently and help it swim, and its diaphanous body gives it an otherworl...It’s easy to see why the aquatic creature in this photo is commonly called a sea angel. It has gossamer-like “wings” that flutter gently and help it swim, and its diaphanous body gives it an otherworldly appearance. Although it appears angelic, this tiny invertebrate is actually a vicious predator.
- https://bio.libretexts.org/Bookshelves/Microbiology/Microbiology_(Bruslind)/15%3A_PhototrophyPhototrophy (or “light eating”) refers to the process by which energy from the sun is captured and converted into chemical energy, in the form of ATP. The term photosynthesis is more precisely used to...Phototrophy (or “light eating”) refers to the process by which energy from the sun is captured and converted into chemical energy, in the form of ATP. The term photosynthesis is more precisely used to describe organisms that both convert sunlight into ATP (the “light reaction”) but then also proceed to use the ATP to fix carbon dioxide into organic compounds (the Calvin cycle). These organisms are the photoautotrophs. In the microbial world, there are also photoheterotrophs.
