The first organism would have therefore been a heterotroph deriving energy from this existing pool of nutrients.    From Wordnik.com.  [Luskin vs. Science (and Scientific American) - The Panda's Thumb] Reference

Of course, from a certain point of view, no heterotroph is capable of feeding “itself”, it needs to find food out there to eat.    From Wordnik.com.  [World's Smallest Genome - The Panda's Thumb] Reference

When the “heterotroph barrier” was finally crossed in the late Precambrian, herbivorous and carnivorous protists arose almost simultaneously, for no major biological differences separate the two groups.    From Wordnik.com.  [Mutation, selection and complexity - The Panda's Thumb] Reference

A heterotroph is an organism that feeds off of another, or its byproducts (so both herbivores and carnivores), as opposed to an autotroph which produces its own energy from the environment (photosynthesis for example).    From Wordnik.com.  [Archive 2008-05-01] Reference

HANPP is definitely useful as a measure of the physical size of the economy relative to the containing ecosystem: It demonstrates how much of the trophic energy that would be available for wild-living animals and other heterotroph organisms in the absence of human activities is still in place.    From Wordnik.com.  [Global human appropriation of net primary production (HANPP)] Reference

Do you know a lot about how to identify if an animal is an "autotroph" or an "heterotroph"?.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

Besides, we’re animals, so we have to make an effort to, pardon the expression, think like an autotroph instead of a heterotroph.    From Wordnik.com.  [Teaching the Controversy - The Panda's Thumb] Reference

Ptolemy’s epicycles, the alphabet soup of subatomic particles prior to Gell-Mann’s work, Planck’s work on quantum mechanics, Fraunhofer’s work on stellar spectra, and the heterotroph hypothesis just to name a few.    From Wordnik.com.  [Intelligent Design and String Theory - The Panda's Thumb] Reference

As a myco-heterotroph, M. odorata.    From Wordnik.com.  [EurekAlert! - Breaking News] Reference