A meal fit for a human heterotroph!
C.Alexander
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.
You might also be interested in:

Organisms that are able to "make their own food" are called autotrophs, meaning "self-feeders". Some examples of autotrophs are plants and algae (shown in the picture). Both plants and algae use photosynthesis
...more
There are many different kinds of plants. Some have big leaves. Some have small leaves. Some even have flowers. All plants make their own food. When sunlight hits the leaves of a plant, photosynthesis
...more
You may have heard of photosynthesis. That's where a plant uses energy from the Sun's rays to make its own food. The opposite of photosynthesis is called respiration. The difference is that respiration
...more
Jupiter's atmospheric environment is one of powerful winds, going 250 miles per hour, and temperatures from -270 degrees to +32 degrees (freezing temperature). These winds make it hard for life forms to
...more
In July, 1996 a team of scientists said that they had discovered possible fossils of bacteria in a meteorite named ALH84001 that came from Mars. It was found in Antarctica in 1984 after having landed there
...more
Saturn's atmospheric environment is one of powerful winds, going 250 miles per hour, and temperatures from -270 degrees to +80 degrees. With winds like these, it is hard to have peace and quiet. The region
...more
The air of Titan is a lot like the Earth's, except that it is very cold, from -330 degrees to -290 degrees! Like the Earth, there is a lot of Nitrogen and other complex molecules. There also may be an
...more