A meal fit for a human heterotroph!
Living Things Get Energy from Different Sources
We all know that living things need food to survive, but not all life forms eat the same things. Autotrophs, known as *self-feeders* are beings which create "food" using energy from the sun, heat energy from the Earth, or other means to feed themselves. Heterotrophs, known as *other-feeders* are beings which feed themselves by eating other creatures, plant life, or food which exist outside of themselves. On Earth, nature provides the following three ways for living creatures to get energy.
Last modified January 11, 2005 by Lisa Gardiner.
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